Editor’s Note: The latest attacks in Europe and the risk of terrorism from lone wolves and returned foreign fighters have led to an increased focus on preventing terrorism by stopping radicalization in t...

Editor’s Note: The latest reporting suggests the United States and Iran are inching closer to a deal on their nuclear program, but will they succeed and will it stick? The answer to this question depends...

Editor’s Note: Autonomous weapons systems—or, as it is much more fun to call them, killer robots—are a controversial weapon of war. Critics worry that they make war more likely because they do not put so...