A U.S. aerial gunship attack on a hospital in Afghanistan that killed 42 people occurred because of human errors, process mistakes and equipment failures, and none of the aircrew or U.S. ground troops knew the target was a hospital, a top U.S. general said Friday.
The United States is inching closer to the day when full-scale nuclear weapons tests are banned forever, the U.S. ambassador to international missions in Vienna says.
An airman shot his commander in an apparent murder-suicide Friday at a U.S. Air Force base in San Antonio, a senior U.S. official said.
