How soon people forget the 5 YOs training with live AK47s.
People tend to look at people and think “Nah look at them, they look too young to be terrorists” anything is possible at this point..the fact that the co-pilot has apparently NO issue with letting total strangers into the cockpit for international flights who knows, maybe he was paid off to let them take over the plane. You have not one but TWO transponders shut down, isnt that what the 9/11 hijackers did, following the same MO