Full Body Spanner

While I'm on the subject of brilliant ideas, here is one which was brought to my attention by a chap in the antipodes.

Instead of a body scanner, design a machine into which you walk after the airport check-in, which detonates any explosive devices you may have about your person.

No racial profiling! No more expensive trials! No health issues (well, for the innocent, anyway).

My pencil and paper are at the ready.