CNN Sanjay Gupta MD July 6, 2013 20:47:00
But theyll want to prove that for themselves, so theyll have a group focusing specifically on that. then youll have a group looking at air traffic control and the communications between the tower and the pilot. so, theyll be looking at that aspect. and then theyll be looking really closely at the pilots, the pilots training, how did this pilot sleep the night before, what did he eat the night before. of course, theyll be drug and alcohol testing as well on people on board as far as the crew memb...
Source: archive.org