You don't know the meaning of "evidence." You've cited a travel news letter summary of the report. The actual report is here:

http://www.aapm.org/pubs/reports/RPT_217.pdf

If you read it, you will discover that the "skin dose" of TSA's x-ray scanners is 4 times higher than the effective dose. And, though I'm not a doctor, even I know that short periods of high exposure to ionizing radiation present greater risk than longer periods of low exposure.

And, of course, there is absolutely no reason why anyone should accept ANY risk from ionizing radiation because of TSA's ill-conceived, readily-circumvented and completely ineffective security theater.

Keep drinking the Koolaid, Ron. You're not fooling anyone.