While the Federal Flight Deck Officer Program has had its scrapes and embarrassments, its record remains better than that of the Federal Air Marshal Program. Indeed frustrations with the air marshals are the reason that these post-9/11 efforts to arm pilots were hardly the first time this was considered.
Eastern Airlines commissioned a Colt revolver in the 1970s to combat hijackings. The charge was to develop a special revolver that wouldn’t cause problems for the aircraft if they penetrated the plane’s skin or its windows.