Originally Posted by
cparekh
Your cells. The expert I spoke to always ops out. Not because the backscatter or MMW is unsafe, but because they could be unsafe if the machine malfunctions. He thinks with the right malfunction even the MMW can cause problems. There is no reliable testing to say that is not true.
And note that the TSA as refused to allow anyone to test their machines, even though it was told by Congress to, and they won't even confirm they are doing any maintenance or testing to ensure they are staying in calibration.
Please note the in the medical world it is not uncommon to test the calibration of devices that produce radiation and find that 10% or more fall out of calibration over the course of a year.