Sadly thats a bit naive BRUpax. These loonies aren't terrorists but that doesn't mean they can't bring an aircraft down. Just remember the BA flight to NBO last year when the nutter threw himself at the controls, that guy looked suspicious, so are you suggesting we just turn a blind eye to this behaviour? There are some people out there who think that being mentally disturbed is an excuse for being disruptive on flights. I say they shouldn't be allowed on the aircraft to start with. Lets see how comfortable you feel as a pax when one of these guys makes a lunge for the flight deck door or attacks the cabin crew. Will you stand up and help, or will you just look away and pretend you don't see whats happening like 99.9% of passengers do.