As I understand it, once all the scanners are installed, you will either do it, or the pat down.
Pliots and flight attendants unions are asking people to turn down the scanner during Thanksgiving in protest of the scan, in order to back the lines up during heavy traffic times. You would think they would want people to be scanned.
C.A.R.E a muslim organization has filed suit trying to stop both. It says it volates the religion.