I had to write it quickly to get it to them on time - so it is not perfect. Here it is.

I was listening to your show and heard the discussion about the Whole Body Imagers (commonly referred to as the Nude-o-Scopes).

I would encourage you and your listeners to opt out of them as long as it is allowed. Not for the reason that it provides a very detailed image of your body to some TSO in a different room (I consider that punishment if they want to look at my overweight 50 year old body). The reason to opt out is two fold. The first is that the backscatter units use ionizing radiation that only penetrates to skin level only. As you know, ionizing radiation is cumulative and there have been NO studies done outside of the TSA to indicate the safety and efficacy of these units. The units are even more dangerous for children as the potential for harm to their DNA is even greater than it is for adults. In fact, the University of California San Francisco has published studies saying that the exposure may be 200 times greater than initially thought. Also, the TSA has opted out of having the units tested, maintained or certified by any of the agencies that have to look at other equipment providing ionizing radiation. Ask your dentist what he has to comply with to have his x-ray machine!

The second reason to opt out is that the machines are useless for their stated purpose. They would not have stopped the underwear bomber, they cannot detect anything that is under a fold of skin, or hidden in a body cavity. So in essence you are being strip searched with no probable cause, being exposed to potentially harmful radiation and not enhancing our security at all. The best combination of security is the WTMD, x-ray of bags, and ETD or ETP (the swaps).

There is plenty of information available on this subject and it is in everyone's interest to inform themselves about their options when it comes to airport security.