I came across this last year. It is an old report written for the FAA and discusses how the scanners and groping could be implemented. It was predicted that women would react more to the privacy issues. See page 44 http://books.nap.edu/openbook.php?record_id=5116&page=44 There is a lot of information in this and anyone with an interest may want to save the pdf of the page. This has been in the works for years and it is interesting that the report discusses the likelihood that the airline and security firm could be sued for storing the naked images (pg 42). Obviously it would be tougher to sue a government agency so perhaps the airlines and private screening firms aren't that upset with the TSA takeover. This is a chilling glimpse into the workings of an out of control government.