The spree of murders at several Atlanta-area spas demonstrates the unique threat posed by rampaging assailants. A new system that alerts the public during such attacks could help save lives.

ISIS Beatles Trial Shines Light on U.S. Counterterrorism and Hostage Policy

Should U.S. companies be held responsible for child slavery on West African farms where cocoa beans are harvested? The top U.S. court’s decision could have major consequences for chocolate companies …

As we commemorate the 100th anniversary of the end of World War I, which transformed how wars are fought and won, the world again stands on the precipice of a dramatic revolution in warfare, this one…