Kendall, I don't believe the idea was to give guns to intrained men. There would, of course, be training before a pilot was permitted to carry a gun and as for the emotional test you referred to, I think that anyone who flies the big jets is someone who wouldn't go off half-cocked in an emergency situation. They MUST be capable of acessing emergencies and reacting quickly and correctly.
Call them the second line of defense if the bad guys get the Sky Marshall(s).

troll