OPT-OUT day was successful in the fact that it made national news and put the matter in the minds of many people who otherwise would not of heard about NOS's. Not bad for the efforts of 1-2 individuals.
It has reached the stage now where TSA has said that they will not deploy any more NOS's without ATD, and there is a growing resistance to the X-Ray Rapiscan units, which I expect will be pulled out and put along side the puffers in the land fill.
MMW with ATD is the ONLY ACCEPTABLE solution, even if they don't work worth a damn, cost a fortune, and cause backups so long that they shunt people through the WTMD's to clear the congestion. I predicted this scenario more than 18 months ago, here on FT, when I discovered that AMS was using MMW with ATD.
TSA will never procure enough machines to screen every passenger. They have already cut the budget for new deployments, and I expect it to be cut even further.