Yes, yes, yes, yes. It's despicable that the TSA automatically assumes that we are the cause of false positive results instead of testing its procedures first. Once again, guilty until proven innocent even when TSA commits errors.... try that approach in a court of law with prosecutorial or law enforcement errors.
It's not just an attitude of "guilty until proven innocent". There is also a pervasive attitude within TSA of "we can do no wrong" and "how dare anyone question anything we do".