Unfortunately, the U.S. Air Force has had some serious and even deadly accidents in its history. This is considered the worst ...

The crashes were caused in large part ... a particular threat to general safety. The 1996 Air Africa crash is a bizarre chapter in aviation history. It's the deadliest accident in terms of ground ...

There was no immediate word on what caused the crash, one of at least two in recent history ... crashes in the U.S. in the past 20 years, including what caused them. From the mid-air collision ...