Mahmoud Abbas has threatened to walk away from agreements with Israel and the United States, but it's not clear what that would mean in practice.

The German Constitutional Court ruled that German espionage activity must conform to the country’s constitution, even if conducted overseas on non-German citizens. What’s in the ruling?

If Joe Biden wins the November election, Americans will likely see a reversion to a more traditional approach to the presidency. What might that mean in the field of U.S. national security?