But metal detectors aren't that much better than millimeter wave scanners. Shoes, belts, and taking the laptop out are the only significant pain point that Ame

But metal detectors aren't that much better than millimeter wave scanners. Shoes, belts, and taking the laptop out are the only significant pain point that America has that the rest of the world doesn't. And the shoes thing is a the result of someone walking through security with bombs in his shoe, so it's hard to be too critical.