Originally Posted by
exbayern
'Use of this technology is optional' is to me a rather vague and misleading sentence. I don't think that makes it clear that the traveller has the choice of not using the technology, and could be misinterpreted several ways.
I firmly believe that is the point. It allows TSA to state that passengers are voluntarily complying now, and gives them an out politically where TSA can say that they opted to or not to use the technology on a case by case basis.