I have read the Globe and Mail article posted by Orca and support guns in cockpit as a last line of defence. Hollings and his mates worry about a passenger being injured or electrical system malfunction before we all get shot down by an F-16 and die anyway. If terrorists want to get in they're going to. Next time they will probably pick a softer target. Europe? The reinforced doors theory is nonsense, they still have to be opened for food anyway and I saw a 'locked' door fall open during descent.