"as far as we know"
Is there good, unbiased evidence of that? I don't trust the manufacturers nor the government, but I also don't believe because electromagnet waves are involved, it is inherently toxic.
Is there good, unbiased evidence of that? I don't trust the manufacturers nor the government, but I also don't believe because electromagnet waves are involved, it is inherently toxic.
The technology deployment is airport-specific, so you will only find one or the other at any given airport, e.g. O'Hare uses Backscatter, Midway uses mm wave.
La Guardia is the one airport serving a major US city that does not have any of the new scanners, which can be nice if you typically opt-out.
edit: never mind, the flyer talk pics are much better.