Well ... not exactly. It's well-established law, for example, that the Government may restrict speech, but only in narrowly defined ways, and where the Government has a compelling interest in doing so. (Insert usual "shouting 'FIRE' in a crowded theater strawman here.)

Now, whether or not TSA policies are construed narrowly enough to still permit freedom of travel while addressing the Government's compelling interest in maintaining public safety is ... well, a matter for reasonable people to debate.