The real evidence (wreckage of the missile, chemical residue) would be in the fields that have now been irreparably compromised.posted by monospace at 10:24 AM on July 21, 2014 There are two black boxes: the cockpit voice recorder, which tapes the pilot chatter, and the flight data recorder, which logs parameters such as airspeed, heading, and pitch, as well as pilot inputs.posted by evidenceofabs