Why are you afraid of responsible Americans defending themselves?
We ahve shown that the cockpit doors ARE NOT on present aircraft, don't work if they were, and can't be installed, nor can they be left shut during flight.
We have shown that ANY air marshall can be immediately killed silently and quickly ... if by nothing else than a plastic stick THROUGH the seat behind him right into his gut.
THAT gives the hijacker IMMEDIATE and UNPREVENTABLE access to the MARSHALL's gun ... WHILE LEAVING THE PILOT (the ONLY person who needs a weapon!) STILL disarmed. Against the NOW ARMED attackers.
When the now-armed terrorists break through the cockpit door without warning, what position are the pilots in?