For what it's worth, even though I cited the wrong tech (see my other reply), gamma ray ("neutron") scanners are pretty cool tech, and worth knowing about :) h

For what it's worth, even though I cited the wrong tech (see my other reply), gamma ray ("neutron") scanners are pretty cool tech, and worth knowing about :) http://en.wikipedia.org/wiki/Cargo_scanning#Gamma-ray_radiography http://en.wikipedia.org/wiki/Cargo_scanning#Gamma-ray_radiog...