Inchoate simpered:
These people aren't afraid to die.
Nonsense. Just because they are willing to die for their cause in no way speaks to their inner state. Also, while they seem willing to die for something that advances their cause (e.g., a SUCCESSFUL mission), this does not mean that they are willing to throw their lives away attempting a mission with an extremely low probability of success. Cost/benefit analysis, look into it.
If they knew everyone on the plane was armed they'd get in various place, throw smoke grenades, and then fire a couple of rounds and duck, all the trigger happy cowboys would blow each other away in the confusion.
IF they knew... IF they could count on there being "trigger happy cowboys" on board (what nonsense)... IF they could rely on the "trigger happy cowboys" panicking AND being good shots (what utter nonsense)... S a n d y