Marshalls are a short term fix.

The simplest security fix is to forget about marshalls and implement the measures below.

1. Secure and seal the cockpit from the rest of the aircraft while any member of the public is on board. This would mean that the cockpit would have to be larger because it would have to incorporate a bathroom and possibly a small kitchen as well. The pilots should have no discretion to open the door even if a member of the crew, or a passenger, is threatened.

2. All crew should carry a remote transmitter to discretely alert the cockpit that there is a situation in the aircraft be it a hijacker or an unruly passenger.

3. The cockpit should be able to view the entire aircraft using CCTV to assess any situation on board the aircraft and determine whether to make an unscheduled landing and alert the appropriate authorities on the ground.

4. If there is an extreme situation on board the aircraft, the cockpit should be able to utilise knockout gas throughout the aircraft and land at the nearest airport.

Comments are welcome.