I heard a story a while ago where some Pakistanis desperate to come to the new motherland jumped the fence at Islamabad to climb up the landing gear bay as a B777 was getting ready for T/O.
If people that are stupid enough to think that they will survive an embarkment like this one, what is stoping Mr/Mrs terrorist to do the same thing but instead plant a magnetic explosive to the fuselage of the aircraft?
The best thing of all Mr/Mrs terrorist will not even have to die do get the message accross.
All these morons who invent these rules should be send to the gulags indefinately.