I have a MUCH better idea:
These fanatics were going to assemble their bombs in the toilets,right.
So,why not install "closed circuit cameras" in all the toilets to monitor activities in there.
Tell pax that they will be monitored,give them a number when they visit the loo and then SELL ALL footage back to them after the flight!!
Maybe the next "lai see" will be luckier at 8888....and BOB can get an even bigger slice of the pizza!!
Brilliant or what!!