I saw 2 different programmes on this. Interviews with passengers, the air traffic controller, etc, etc. Captain says it was his Air Force training that enabled him to pull it off. The unexpressed incredulity in the air traffic controllers responses was almost funny.You could sense a "this cannot be happening" with him.
Unbelievable how incredibly calm they all are. The inflection in their voices never even changes.
Flying - 99% boredom, 1% sheer terror.