Chimbu chuckles - go to the top of the class. Dealing with hijackers must be
SWIFT and FINAL.
If they hijack the aircraft to a 3rd country, I say, forget the shackles and wasting good space sending them home - execute the bastards on the tarmac with a complement of CNN news crew there to record the event.
A deterent is what is needed and a few more in flight shootings by the air marshalls or special services target practice on the tarmac will be all that is required.