Department of Homeland Security is not just happy with being able to use the Z-backscatter scanner technology on passengers at airports, but have now incorporated this technology into mobile vehicles. URL: YouTube - Full-Body Scan Technology Deployed In Street-Roving Vans While the argument has been that it would be for screening cargo at docks, and cargo on aircraft, it just doesn't really hold water; a fixed installation would be adequate for the uses described and would avoid potential privacy concerns. Regardless, this video clearly suggests that it would be used for peeping inside cars on the streets; possibly into somebody's house. One would have to be foolish to believe that they would only look for bombs. A couple of years back the U.S. Supreme Court ruled that it was unconstitutional to use technology (such as FLIR) to see through walls without a warrant as it constituted a search and seizure. There is nothing to suggest the governments attitude lately, that it has any intention of seeking a warrant before conducting searches. This device also poses a radiation hazard, just like it does for people at airports. Unfortunately, at least at an airport, one can opt-out; this device will not have an opt-out. What are your opinions?