Here's an amazing video that someone put together of amateur video from the ground with NASA audio during the Space Shuttle Columbia breakup over Texas as it was coming in for a Florida landing. A piece of foam had broken off of the external fuel tank during launch and NASA management had stifled engineering requests to examine the shuttle from spy satellites. A hole in the leading edge of the shuttle wing resulted in her burning and breaking up. This was the 2nd time management had directly been responsible for the demise of a shuttle craft and her crew. Other sources: chrisvalentines.com, newsday.com.

KLING: FYI I've just lost four separate temperature transducers on the left side of the vehicle, hydraulic return temperatures. (pause) Two of them on system one and one in each of systems 2 and 3.
CAIN: Four hyd return temps?
KLING: To the left outboard and left inboard elevons.
CAIN: OK, is there anything common to them, DSC or MDM or anything? I mean, you're telling me you lost them all at exactly the same time?
KLING: No, not exactly. They were within probably four or five seconds of each other.
CAIN: OK, where are those? Where is that instrumentation located?
KLING: All four of them are located in the aft part of the left wing, right in front of the elevons, elevon actuators. And there is no commonality.

What is also spooky is that they found the video tape from inside of the cockpit shot from Columbia by one of the astronauts a couple of minutes before it broke up. Here's the story about the video. In a video about the crash, I remember them talking about how they found the video. They had been to a woman's house in Texas who reported finding a piece of Columbia on her property . The item was not a piece of the shuttle but on the way back to the car, they found a video cassette sitting on the site of the road. It was in perfect condition with no sign of the camera. Bizarre. The analysis of crash information was helped by the discovery by searchers of a data tape containing information from the shuttles Modular Auxiliary Data System.

The team concluded the foam broke away from the left bipod ramp 81.7 seconds after liftoff and hit the underside of Columbia's left wing two-tenths of a second later. The foam measured 21 to 27 inches long by 12 to 18 inches wide. It was tumbling at 18 revolutions per second. Before the foam separated, the shuttle -- and the foam -- had a velocity of 1,568 mph, about twice the speed of sound. Because of its low density, the foam rapidly decelerated once in the airstream, slowing by 550 mph in that two-tenths of a second. The foam didn't fall on to the leading edge of the left wing as much as the shuttle ran into it from below. The relative speed of the collision was more than 500 mph, delivering more than a ton of force.