Originally Posted by TSASMF
The govenment has deturmined that the the airport checkpoint is an implied consent area ... This means you waive your 4th rights when you walk past that mag....you can invoke them at anytime as long as you do not alarm. If you do the cause must be found...If you invoke your right to not get screened and you havent alarmed you will not be allowed past the checkpoint....and that means no flying....the same goes with your carry on and check bags...
Had you bothered to actually read this thread instead of blasting off into Flashbackland, you would have noticed that this poster was referring to the original topic at hand, namely the IDing of passengers at Boston train stations.