I had a camera bag that alerted at DFW. I know for a fact that the bag had not been in contact with anything remotely dangerous.

I have been told that the ETD equipment has a high false positive rate like every other piece of equipment that TSA has purchased.

TSA's answer to security is like using an A380 to move one person across town.

The problem is Pistole's Perverts and the processes TSA has in place to screen 2 million people each day who present almost zero threat to commercial aviation all while allowing every airport worker to bypass any meaningful screening.