Not only is it a violation of our rights, but I'm here to tell you that the only good exposure to radiation is NO exposure. Part of my job is industrial process radiography, and we have multiple electronic devices to carefully monitor and track our exposure. If a system with enough power to do what they're using this for has a malfunction and gets stuck on (can happen), or gets pointed the wrong way, someone can get one helluva dose. And the thing to remember is, this is ionizing radiation. Yes, they use the same sort at the Dr's office, but they use shots that last a fraction of a second; and the benefit is considered to outweight the risk. For the sort of scans they'd be doing, the source would be on a LOT longer, and the mA and kV would be cranked. Folks have died badly from overexposures resulting from equipment/human failures from industrial radiography equipment. I just have a hard time imagining that if they DID have an issue, they'd be forthcoming about it; not that that would help whoever it got.