Lawfare Daily: Chris Hoofnagle on the Theory, History, and Future of Cybersecurity
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Published by The Lawfare Institute
in Cooperation With
Chris Hoofnagle, Visiting Senior Research Fellow at King’s College and Professor of Law in Residence at the UC Berkeley School of Law, joins Kevin Frazier, Assistant Professor at St. Thomas University College of Law and a Tarbell Fellow at Lawfare, and Eugenia Lostri, Lawfare's Fellow in Technology Policy and Law, to discuss ALL things cybersecurity—its theory, history, and future. Much of their conversation turns on themes expressed in Hoofnagle’s textbook, “Cybersecurity in Context,” that he co-authored with Golden G. Richard III. The trio also explore related concepts such as the need for an interdisciplinary approach to teaching and studying cybersecurity.
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Transcript
[Introduction]
Chris Hoofnagle: Law enforcement, the military, the intelligence community, private sector actors all look at security differently. They have different incentives, different goals, different interpretations of what security is. And part of what's made regulating security so difficult is that these goals are sometimes in deep conflict.
Kevin Frazier: It's the Lawfare Podcast. I'm Kevin Frazier, assistant professor at St. Thomas University College of Law and a Tarbell fellow at Lawfare, joined by my colleague, Eugenia Lostri, Lawfare’s Fellow in Technology, Policy, and Law, and our guest, Chris Hoofnagle, visiting senior scholar fellow at King's College and Professor of Law in Residence at the UC Berkeley School of Law.
Chris Hoofnagle: This is a rich field that involves so many different issues, from standards to forensics to international relations. So part of what we're doing is getting the student to slow down and to appreciate just how big the picture is.
Kevin Frazier: Today we're talking about “Cybersecurity in Context,” a new textbook coauthored by Chris and Golden Richard. The book explores the theory, history, and future of cybersecurity.
[Main Podcast]
Eugenia Lostri: Chris, I mean honestly, your textbook is pretty impressive. I think the first thing I said to Kevin is that, oh my god, this is really a history of everything cyber, right? So that’s, that's really incredible. But I imagine that a big challenge of writing a history of everything is ensuring that it remains relevant that you're not having to constantly update any time that there is a big change in technology, or a small change in technology, or in policy, since we're finally seeing a lot of action on that front. So I was curious as I was reading it, how did you go about future proofing your textbook?
Chris Hoofnagle: That's absolutely right. That's a central concern in writing a textbook. And so what my coauthor, Golden Richard, and I did was take a framework approach. The book is filled with theory, with high level framing questions one can ask. We try not to answer questions, but rather to equip students with the right questions to ask, many of which are based around cost benefit analysis and really thinking critically about what we're trying to do with security and whether our interventions work, how they might fail, how technology might change. So you've identified a central concern for us, one that we've struggled throughout the textbook to address.
Eugenia Lostri: Yeah, no, I can imagine. And I have to say the idea of the tradeoffs is so central, right? And it's not, sometimes not sufficiently discussed when we're talking about cybersecurity. We all want to accomplish 100 percent of what's in our respective silos. So having that as a theme I would imagine is going to be a great contribution. Something that struck me, though, is that you chose to have these images from the Iliad and the Odyssey, which is not necessarily what I think about when I'm thinking about technology. So, I'm curious if you can tell us a little bit more about why you chose that, what it represents, and how it's supposed to help students as they're going through the textbook.
Chris Hoofnagle: Golden and I are both classicists, and we think that there are lessons from the Iliad and Odyssey that are relevant to today that we found that many students aren't familiar with. And the primary lesson is that you have to use your head to defeat your adversaries and not your brawn. You know, all of our popular media today presents heroes and soldiers as these kind of mega warriors rather than as people who use their head and use techniques that are as old as history. You can go back and read Caesar, Julius Caesar and his use of trickery and disinformation to win battles. The Odyssey is filled with disinformation and clever tricks that allow societies to win without using violence. And I think this is a lesson we really need to understand that most people are going to, well the smart people in the world are going to try to engage in adversarial conduct using their head rather than their brawn.
Kevin Frazier: And when you mention use of a framework approach, using your brain, for example, to dive into, let's say, a cost benefit analysis, one thing that came to mind for me was that we're seeing some challenges to the use of CBAs, as the shorthand is, in other contexts. Where, for example, in an antitrust framework, we've been seeing more and more people challenge this kind of over reliance, perhaps, on quantification of the good or bad of a certain policy.
Was there a sort of back and forth with you and Golden on whether that was the best normative framework to use, or what was it about a CBA that you thought leaning into it in a cybersecurity context made the most sense for students, given where we are, given other policy conversations going on?
Chris Hoofnagle: I've been a big critic of cost benefit analysis throughout my career. I've identified it as a kind of one-eyed analysis, but let me tell you, my sometimes colleague, Peter Schuck, convinced me that cost benefit analysis is the way to think about regulation. And the way to think about cost benefit analysis is to broaden one's lens to think about some other values.
So one of the questions we challenge students to think about is whether a security trade off involves a privilege, a right, or an interest. And if we are trading interests or trading privileges, that's a very different issue than whether we're trading a right. Another question we ask in our framework is whether the security measure makes opportunities for guile. So can, if you implement this security measure, does it make it possible for decision makers to take your money? Or to deny wrongdoing? So, security has to be seen in this larger framework where assaults to our civil liberties are part of the costs considered and whether or not accountability is actually in the system.
And if there's not accountability, if there's no way for the data subject, the individual, to hold a decisionmaker to account, that is a cost that has to be in the framework.
Kevin Frazier: And I think this is particularly exciting because of my own experience being a student of yours in an interdisciplinary cybersecurity course, having a framework that allows for the incorporation of diverse disciplines and encourages students to reach out to that public policy student or reach out to maybe even that philosophy student and get a new understanding of what should be included in that CBA is really fascinating. So would you say that this textbook really is a push, even a subtle push, or maybe an explicit push to make cybersecurity more interdisciplinary?
Chris Hoofnagle: Absolutely. As Kevin, from being in my classes, my courses at University of California are deeply multidisciplinary. It's one of the reasons why Golden and I wrote this textbook. We struggle to teach our respective students important cyber literature from other disciplines. The classic example is trying to teach law students Thomas Rid's “Cyber War Will Not Take Place.” And that's an amazing article, and it has some subtleties and disciplinary assumptions that are just outside law students’ toolboxes. Now you got it because of your background, but most of--
Kevin Frazier: Who knows if I really got it. You're being too kind. For all the listeners out there, I was probably back there raising my hand all the time. What the heck is going on here? But I appreciate the kind words professor.
Chris Hoofnagle: Well, they're well deserved.
And so what we're trying to do, I think what the textbook does, is it synthesizes the economic literature, the psychological literature, the political science IR security studies literature so that students who don't have a background in these different disciplines can make sense. And a lot of that is about the disciplinary assumptions that are unstated in political science and that actually conflict with lawyers’ ideas about what's just in the world. And lawyers are very focused on individual, individual rights. And so the disciplinary assumption that a political scientist or security studies scholars might have, it's just a different level. And it's just not obvious to people studying in the field.
Eugenia Lostri: I just, I want to jump in here as someone who comes from a background that had nothing to do with cybersecurity or technology, here another lawyer with an interest in international law. The way that I read this section of your textbook was, there's so many different ways in which you can contribute to the discussion, even when you don't have this technical background, even though you should probably learn a little bit, like your textbook is doing, just learning a little bit of everything to understand the context.
But I'm wondering, because you do work with students every day, you see this firsthand, and we know that there is a cyber workforce deficit. We need a push towards bringing more students interested in the field in any one way, whether it's policy, whether it's law, whether it's economics, psychology, or the actual technical stuff. So, I'm wondering if in these cross disciplinary classes that you have, do you see what are the challenges or the hurdles in the way for these students? Or actually, we just need to wait a bit longer until all of them graduate and then the cyber workforce problem will be solved.
Chris Hoofnagle: That's a great question. The problem that students have is that first step and believing in themselves and getting that first job. And what's so interesting about this is that America and other nations need millions and millions of people to work in cyber. And the upside for students is that even the entry level job, so information security analyst, is a $100,000 a year job. So, one in cybersecurity can do well. You can have a great middle-class job. The problem is getting that first job. And so what we do in the textbook is we integrate labs to increase students facility with computers. So, it's written so that even students who have no programming experience can do the labs and learn more about their computers, but also to demystify things a bit.
What's going on in a lot of, let's say, SOCs is not terribly complicated. And a college student who has good critical thinking skills, good communication skills, can absolutely do that work. But currently cybersecurity is cloaked in all this mystery and intrigue. So what we want to do is demystify it and say, Hey, there's a place in cybersecurity for you. And it doesn't matter if you're, if you're a music major or some other major in, in social sciences, what really matters is whether you can think and whether you can communicate.
Kevin Frazier: Speaking of that deficit of cybersecurity workers, you spend a lot of time in the textbook pointing out that the military was the original cyber actor. And I think for a lot of those jobs you mentioned, the $100,000 job or some sort of private sector job, I think there's a particular deficit in the public sector, finding folks who will be in those day to day roles, helping the government itself respond to these crises. Thinking about some of these broader efforts we're seeing now in the AI context, for example, the Department of Homeland Security created an AI core to try to bring more tech talent into the government, would you call on DHS and similar entities to say, hey, we need a similar Cyber Corps or can we expand efforts like that to say this is our sort of Peace Corps for cybersecurity or what can we do to get more public sector expertise in this front?
Chris Hoofnagle: The public sector has a particular problem. They're training people from zero, taking them from zero to 60 and then they lose them. So the military and many other agencies are training new people and those very people go out and get jobs at consulting firms where they sell their services back to the public sector. So, it's great for those individuals, but it's very costly for the taxpayer. So, we absolutely need ways to integrate new learners, so that that first job into the public sector, and no one wants to hear this, but we have to make pay higher. We have to pay more, and we have to make these jobs more flexible. There's a lot of people who don't want, for whatever reason, they don't want to be in the Washington D.C. area. They want to live elsewhere in the world. And for whatever reason, they don't want to live under the burden of a security clearance. And these are some of the factors that make it hard for the public sector. So why should I live with the burden of a security clearance when I could get a job at a Bay Area company that's not going to bother me about whether I'm friends with people from certain nations or whether my weekend recreational activities are. These are some of the challenges we need to overcome
Eugenia Lostri: Sso you started your question, Kevin, exactly the same way that I was going to start my question, which is about the military as the original cyber actor. And I was very curious if you could tell us a little bit more about how you see the fact that it started in the military, how it shaped the history of cybersecurity so far, the way that we understand it, and whether you're seeing a shift now when we consider this more in the commercial space, the private space. Has it changed things? Or are we definitely still burdened by the original sins of how everything developed?
Chris Hoofnagle: It might be teaching at Berkeley that shades my lens on this, but my experience in academia is that many in the professorate are dismissive of the military. They don't understand how complex it is. They don't understand how big and how awesome and how thoughtful people are in the military, and I really got fully into focus in this in studying Willis Ware's archive at the University of Minnesota.
Willis Ware did all sorts of consulting and study for the military and some of his reports are now declassified. And what you learn from these reports is that in the late 1960s, the military had already figured out a lot of things that we are still struggling to figure out in the corporate sector. Prime example is security by design, a report that Willis Ware wrote in 1970, one of the first recommendations is that computer systems have to have security as a design factor. That is security by design. In the 1970s, the military was doing red teaming. They called it tiger teaming. They also figured out that multi-tenant environments are inherently insecure.
They figured out all these things that we seemed to forget and relearn in the 2000s and 2010s. And so I think we should be humble, humbled by this. And I also think that we ought to be looking at the military and the intelligence community more carefully for leadership in understanding security problems and then understanding what to do about them.
Kevin Frazier: And I know Eugenia is going to have a lot to say. I do want to make one plug just generally while we're talking about military opportunities as someone who was two weeks away from bootcamp joining the Air Force JAG, but then was medically disqualified. That's a whole other podcast, but for all those law students listening right now. Look at JAG programs. If you want to get involved on any of these issues and get real meaningful experience right out of law school, call a recruiter. It'll be worth it, and you'll see some really interesting opportunities. And then send me an email, and we'll talk further. But with that, Eugenia, please.
Eugenia Lostri: That's great. Thank you, Kevin. I just, there's so many threads in what you just said that I want to pull. Okay, let's start with the first one. You mentioned security by design and you may know, or listeners may know, that we at Lawfare have this ongoing project looking into security by design, the incentives and disincentives for it. You have an entire section addressing this. And I do appreciate the plug that, yes, we've known it. What are some of the technical solutions to this problem? For a very long time we compiled this attempted literature review, looking at all the different ways in which different actors have been thinking about security by design. And it just becomes very surprising why these things are just not basic, why they're not in every single product. And I do appreciate the Biden-Harris administration's push for security by design. I think that's great.
But basically, the way that you talk about it, it's a very common way to talk about it, is about the incentive to be the first to market and how that detracts from security. It creates, it makes sense, security creates friction, it means revisiting, means having to do things again, and if you're not the first to market, you're probably going to lose the race. So if security is not required, for minimum viability of the product, do you think this is exclusively an economic problem, or these other categories that we've been talking about, the technical side, the people side, the psychological side, do those influence it? Maybe they don't influence it just as much as the economics of the market. How do you see that now that you've done all this work, how do you see that affecting security by design?
Chris Hoofnagle: Let me just start with some humility. I'm a startup lawyer. I'm basically a corporate lawyer now. And my understanding of cybersecurity comes from my lens. And that lens is not universally true. It's just the lens I have and what I see. Most of my work is in the startup space and the venture space. Small companies tend not to have a chief security officer or security team. They tend to have someone who's very good at security, but not a comprehensive way of looking at things. And they understand the game is about being acquired or going public. And these economic factors are overshadowing the legal factors.
So speaking as a lawyer, I have to say they have to do all the things and they have to comply with GDPR and so on. But speaking as an expert in the field, I know that the economics of becoming very affluent, of selling one's company outweighs security. And that might be okay. One way to think about it is, we're going to have this innovation, and oftentimes the acquiring entity cleans up the security problems. But it leaves a lot of users in a lurch. And you can think about some of the social media players out there where companies got big very quickly and then had breaches that were catastrophic for their users privacy. That's going to be the price we pay for that innovation.
Eugenia Lostri: Since you brought up social media, let me tie that back to the military aspect of this. Personally, I've always been a little bit skeptical of pairing psychological operations with cybersecurity. It just seems like they're sufficiently distinct and they have sufficiently different histories to be considered separately, but I know that's not the case for everyone. A lot of discussion has bucketed psyops as part of a cybersecurity problem, which has been super interesting to just read about.
But you discuss these psyops, and I'm just quoting, the prospects that cyberattacks might cause loss of crisis control is a powerful psychological factor for the military. So are you understanding psychological operations as in you may be convinced that your cybersecurity defenses are not good enough or is this just psychological operations by themselves are going to have this demoralizing effect on the military?
Chris Hoofnagle: So the latter, and I think you're absolutely right. I think your framing is absolutely right. I would draw a line. One is about electronic warfare, which is separate, but then overlaps with cyber. Another is psychological operations that do not need to be in the internet at all. They could be entirely in person and so on, which again, overlaps with cyber.
So I think what's powerful about cyber operations, however, is this psychological effect that an adversary’s systems might just not be functioning, and it might be because of the incompetence of the adversary. A great example is Olympic Games Stuxnet with the centrifuges, that attack seemed to create a powerful effect on the adversary. And I think all adversaries to powerful nations have to think about whether their systems are malfunctioning because a powerful cyber actor like China or the United States is inside them. And so I think there's going to be this fundamental concern about control and systems going forward.
Kevin Frazier: So bringing up some adversaries now, I think that moves us nicely into a kind of realpolitik conversation. I think there are very few cybersecurity professionals and scholars who would say they are satisfied with cybersecurity regulation as it stands right now. We have more or less a 50-state framework for privacy and a lot of cybersecurity measures. And yet you and your coauthor point out that internet policy disputes, to use the words of David Clark, are often better defined as tussles. And I love this phrasing of tussles. And you all say that you refer to them as tussles because they're perhaps harder fought than other policy debates.
And so I wonder if you think that we need something else to help students not only take these frameworks, but then learn how to apply them in a kind of realpolitik setting. Because we've seen on the Hill, in these state legislative sessions, it's really difficult to pass meaningful cybersecurity protections and new bills. So what's your response to how we take these great ideas and get them implemented in practice on the Hill or in Sacramento or pick your capital?
Chris Hoofnagle: I think the most powerful argument we can possibly make is sourced in the security as a science literature. If one can show that their approaches actually make people's lives better, systems more secure, more resilient, I think that's the way to go. And so I'll just throw a curve ball. I'm not sure at all that security breach notification helps anymore. And I think it's something that we ought to rethink. I also think that lawyers have made giving notification the terminal goal of security breach rather than security. The whole point of security breach notification is to create incentives for security. So I think there ought to be a rethink around those measures.
The realpolitik issue, the way we address the realpolitik, is to talk about cybersecurity through different actors’ lenses and to explain that law enforcement, the military, the intelligence community, private sector actors all look at security differently. They have different incentives, different goals, different interpretations of what security is. And part of what's made regulating security so difficult is that these goals are sometimes in deep conflict.
Kevin Frazier: And I think what's particularly important about the textbook as well is that you all push students to think creatively about policy solutions. As you just pointed out, lawyers tend to be, sorry to the rest of the legal profession, fairly path dependent, right? If we can squeeze something into an individual due process mindset, or say we can check a box and just persist with this outdated notification law, even if we know no consumers respond to it. We're like, you know what, that's all in a good day's work for a lawyer. Let's just keep on with the status quo.
Eugenia Lostri: It's good to be self-aware.
Kevin Frazier: Yes. So, would you say, Chris, that inspiring that sort of policy creativity is one of the goals of the textbook?
Chris Hoofnagle: Golden Richard and I want to broaden what people consider to be cybersecurity. So many people out there think it's incident response. It's security breach. No, this is a rich field that involves so many different issues from standards to forensics to international relations. So, part of what we're doing is getting the student to slow down and to appreciate just how big the picture is. But then once one sees how big the picture is, you realize that cybersecurity might become a form of universal regulation and kind of an excuse to regulate everything under the sun. So, we have to both see the big picture, but also be able to decompose its elements into pieces that make sense and that are regulatable.
Kevin Frazier: And I think too, you all stress accountability, which is an underappreciated part of any regulatory regime, which is, if bad actors can just continue to engage in bad behavior, or let's not even say bad actors, just accidental actors who engage in a practice they didn't intend to without accountability, nothing really changes. Would you identify that as one of the current biggest flaws with our approach to cybersecurity?
Chris Hoofnagle: So, accountability is basically not present in some areas of cybersecurity. And a great example is cybercrime which is a area where people can make lots of money and more or less, they're unlikely to ever receive any type of investigation or accountability. And then when we pan out a bit and say, okay, we can point our fingers at cyber criminals all we want, I think we also need to think broadly about entities like critical infrastructure providers where the accountability rare really has to be around resilience. For instance, I don't think users are, as a user of my electrical utility, I don't really care about their security. What I care about is whether or not electricity is on. And so marketplace incentives are really important and where you have monopoly and where you have no choice, you might not have resilience and accountability. And so let me give a recent example.
Recent example is the car dealerships all across America recently suffered a major ransomware attack. I had both my cars serviced during that ransomware attack. Both of my car companies were operating, two different companies, they were operating, they were able to take appointments, they were able to work on my car. And I think that's because there's competition in the private sector. And it doesn't surprise me that we see total shutdowns when there is no competition, when let's say a pipeline receives a ransomware attack. And the answer is to shut off service. So I see accountability in a lot of different ways. Everything from ensuring legal accountability through the criminal law, but also through the market and how the market can shape incentives for resilient operation.
Eugenia Lostri: So I have a question about accountability that is a little bit tangential to the question of cybersecurity. And actually, Kevin, this is also a question for you because it has to do with AI, which again we cannot go through a podcast without talking about. But when we think about the accountability of machine learning, of artificial intelligence solutions that are being deployed and the problem of this black box decision making, how are you thinking about accountability in that context?
Where should that lay, should it be in the process? And maybe this is my lawyer brain thinking we should have a process in order to respond to this and make sure that there's accountability. Is it in the technical side? Is it on whoever is deploying it? Is it on the human in the loop? How should we be thinking about it? Because there's so many important decisions that affect many individuals that are just being decided through who knows what process.
Kevin Frazier: I can jump in there a little bit and just say I think that this is one of the biggest issues with the use of AI, especially in a defensive context or an offensive context, whether it's a military actor or just a private actor, deploying these solutions where you're not quite sure who's responsible for what. And this was just amplified by the podcast I did with Ashley Deeks and Mark Klamberg a few weeks back, where we're going to see AI systems interacting with one another. And when we get to that point, I don't know what you call black box squared. Maybe you just call it a black hole. I'm not sure. If I did just coin a new phrase, TM. But I think that's a really scary possibility that we have to reckon with if we're going to ensure this notion of accountability, so my answer is a non-answer, which is to say I don't know how we hold folks accountable.
Eugenia Lostri: Such a lawyer.
Kevin Frazier: Such a lawyer. And I'm so skeptical, and I’d actually love your take on this Chris given your attention to psychology as well. I'm very skeptical of human in the loop requirements satisfying a lot of these accountability concerns because we've seen things like automation bias, which is just, if you are engaging with an AI, it tells you to do X, what are you going to do? X. It tells you to do Y, what are you going to do? Y. It's not rocket science, it's just human nature, and that's fine, but I don't think we should ignore how our brains work, how our society works, how our organizations work, when we think about those accountability decisions. So that's my one cent of Kevin wisdom.
Chris Hoofnagle: I think it makes sense to look at historical examples and the best historic example is the Fair Credit Reporting Act, which absolutely regulates AI. Credit grantors have been using machine learning in the form of multiple logistic regression for decades now. And your credit score is based on a somewhat secret, it's a half secret, set of factors that are based on regression analysis. And the way we deal with that is we give individuals the ability to challenge the ultimate decision. They're not allowed to look in the black box. We know what's in the black box. It's things like payment history and so on.
Now, automation bias is definitely present in credit granting now. If you go to your local phone store and try to buy a new iPhone and the credit score comes back, it's not going to give, it's not even going to give a number. It's going to give a thumbs up or a thumbs down. And that salesperson has no choice. Yes, you get the phone or no, you don't. And that's it. And so that's an example where we've totally locked into the automation of the system. We've totally taken away the authority of people to challenge it. Now the customer can go and say, I want to be reassessed or the information that my decision was based upon was inaccurate and get it redone. But I think there's tremendous amount of academic study that can be done on credit reporting and the effects of this automation and automated analysis.
I think it's also important, and what I see lacking in the field is a paying attention to the compared to what. So you might not like credit reporting, but let me tell you, there was something before credit reporting that was worse and it involved, sitting down in an office and convincing a person that you could pay your bills without data. So as bad as the machine learning approach is, it might be better than the alternative. And that kind of compared to what analysis is missing and a lot of the critique of machine learning out there.
Kevin Frazier: You're going to get me just talking on for way too long, but compared to what legal scholarship field is just too blank, especially with respect to issues like AVs. I'm driving in Miami right now. I would much rather have a whole set of AVs on the road than humans who are, let me tell you, just the most unpredictable actors ever. So please, we need more compared to what analysis out there. Here's a call for papers for all those scholars out there.
Chris, I do want to also just dive into maybe other critiques you may have of the way cybersecurity is traditionally taught. I think that we've seen a huge spike in the number of schools who are offering cybersecurity programs, which is great. It's on law course offerings across the board now. But you point out there's often issues with this monolith view, for example, to cybersecurity, we've talked pretty extensively about your emphasis on thinking through all of the actors involved in cybersecurity. Are there any other common issues you would just want to highlight or maybe best practices you really think other scholars should be paying more attention to?
Chris Hoofnagle: I do think that cybersecurity has to be taught with a technical emphasis. And it's difficult to do this. This is one reason why Golden Richard and I wrote this textbook. Golden is a computer scientist at Louisiana State University and has long been affiliated with the NSA's Center for Academic Excellence program. So much of what we do is give a companion set of labs to the normal doctrinal instruction to show students that computers are not mysterious objects, that you can become more sophisticated with them, you can learn what they're doing. And in fact, a lot of cybersecurity skills shrouded in mystery, once they are unshrouded, you realize that these are things I can do. And I don't need to be a computer scientist to do it. I just need to be someone who can make sense of information. So having study and statistics having some basic programming skills, are some of the areas that I think are important to teach. And so what we're trying to do is bridge the gap between the doctrine and these technical skills. And it's rare to find people who have both.
Kevin Frazier: Well, I think we will go ahead and leave it there. Thank you again for joining us, Chris.
Chris Hoofnagle: It's my pleasure. Thank you so much for having me.
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