Here's a decent video explaining the February 2008 crash of a B-2 stealth bomber at Anderson Air Force Base in Guam. Yes, we've known for a long time that moisture led to incorrect cockpit airspeed displays which ultimately led to the crash. Still, this video does a good job of explaining the entire incident from brake release to impact with the ground. It's also got a clip of the $1.4 billion crash I'd never seen before, around the 2:33 mark. Enjoy.