TSA scanners don't work...

  And now, the piece de resistance for the TSA scanners.
  They don't work.
  In addition to concern over the safety of some of backscatter xray machines, an issue the FDA has ducked, now comes the fact that they don't work.
  NBCDFW has video and the story:

An undercover TSA agent was able to get through security at Dallas/Fort Worth International Airport with a handgun during testing of the enhanced-imaging body scanners, according to a high-ranking, inside source at the Transportation Security Administration.

The source said the undercover agent carried a pistol in her undergarments when she put the body scanners to the test. The officer successfully made it through the airport's body scanners every time she tried, the source said.