[nightdriver]

A device that would detonate any explosive material could be installed in airport metal detector, but it would get really messy at times.

[Senormechanico]

How about "Bomb Rooms" at airports? You walk in, and get a quick zap of microwaves or some such. If no boom, you pass.
I'll leave it to the techies to figure if it's at all practical. It could be very profitable for the inventor if it could be done.

SM