Reply #103: If the x-ray strength is too high the device can't work.

[Sirveri]

It's not physically possible, the x-ray beam would pass through the body. The independent tests I've seen showed a less than 0.1mR dose, which considering you take 8-10mR a month, isn't all that significant.

As for effectiveness, they're not at all effective. Just take a ceramic knife and put it on you inner thigh. If you're significantly overweight you could probably tuck it into a fold somewhere. Or of course do the good old fashioned anal smuggling. Then there's the obvious 4th amendment violations, which have been happening since we've been told we can't bring a can of sealed soda past the security check. I'm on the ACLU's side on that one, but I just think the radiation issue is a non-starter.