Sure. The problem, as most folks would agree, is that the test has nothing to do with actually carrying explosives at the airport.

And that TSOs aren't trained to follow scientifically valid testing procedures.

And that, in so many cases, the machine is detecting things similar to explosives or ingredients in explosives - not so much actual explosives. Things that are in medication. Or on golf courses. Or, you know, soap.

And thus, a predominantly worthless test subjects a normal person to physical inspection, effective detainment, and a subjective judgement from a "supervisor" on continuing onto a plane.

All to try to detect something that another inspection technique should have already found and that happens - maybe - once every few years.

So what if they followed procedure? Theatre belongs in a theatre.