That's exactly what Kippie and Company hope the majority of Americans will say. Then, they will never have to address safety issues.

I found a pretty good layperson's version of the electromagnetic spectrum: http://www.rhsc.ca/spectrum.html

If you scroll down, you'll see the catagory of "microwaves". This device is in the same frequency/wavelength regime as your microwave oven and various radars and are characterized as "millimeter waves."

It shouldn't surprise any of us that the TSA safety explanation is misleading: http://www.tsa.gov/approach/tech/mwave.shtm

First of all, they are comparing this device to cell phones. Wavelengths of cellphone transmissions are approximately 100x the size of these waves. The FM radio's wavelengths are 1000x the size of this scanner. Their little diagram also compares amplitude of various transmissions, which is the least important factor. But, it makes for a convincing picture.

This body scanner's electromagnetic characteristics are a heck of a lot closer to a microwave oven than a cell phone or boom box. Depending upon your body composition and the clothing you happen to be wearing at the moment, you could be slowly cooking yourself over time.