for radiation risk and privacy reasons, we support the campaign but it's not ours. bill: privacy issues, health risks and effectiveness, the third item, will go to security as to whether or not you think they are effective? >> yes, we have the documents that show that these devices are not designed to detect powdered explosives. bill: you have the documents, i have been on the web site, tsa.org, refute all of this. and in fact they say when it comes to protecting the public, the body image scans they say the machines were never designed to even hold them in memory, can you dispute that with evidence? >> well, these machines actually were designed to be able to store and transfer these images, we have the specifications documents. which was authored by tsa and this document shows what tsa required of the manufacturers of the devices and tsa in fact required these devices be able to store and transfer the