The issue on this thread started with bag matching. Yes, a good idea if some rag-head terrorist wants to plant a bomb aboard, using timer or a pressure trigger, then not show up for the flight. Bag stayes on, plane blows up. Valid point for baggage matching.
NOT.
As was proven 9/11 and has been proven for years in Israel, some of these brainwashed fanatics thinks it is cool to die for the cause: Show up at the gate, board the plane, bag with bomb stays onboard. Plane blows up.
The terrorist goes to terrorist heaven where 72 virgins are waiting to service all his needs.
(Boy will he get a surprise in hell instead)
So what good did the bag matching program just do?
That being said, I agree it should be implemented, if it saves only one airplane or just one life, it is worth the extra work and $. Probably would add only one dollar or two to each ticket.
But again, a bag match program would not be the solution. More of those CXR bomb sniffer machines could prevent any explosives being loaded onboard, whether the owner shows up at the gate or not.