If they can't convince witless fanatical boys and girls to carry the bombs, they will resort to trickery (which they already have, on several occasions). It works like this. An Al Qaeda operative wants to deliver a suicide bomb to a given place. He grabs some poor kid on the street and gives him a package to deliver and pays the kid a few bucks to do it. The poor kid knows nothing, but is turned on by the money. He takes the package and proceeds to deliver it. As soon as he enters the target building, the Al Qaeda operative who has been watching him detonates the bomb by remote control. The same thing works with vehicles. An Al Qaeda operative wants to send a large bomb someplace. He hires some poor schmuck as a truck driver, promising him good wages. The guy begins work by driving a van to a "customer's address" which turns out to be the target. Again, the Al Qaeda operative detonates the bomb by remote control. News reporters say it was a suicide bomb. In either case, the bomber is not alive to dispute them.