Unless you've carried a gun on a flight...and then have to turn yourself in.
Of course, you might want to keep quiet in the first place, particularly if you are an American citizen of a particular right-leaning political affiliation, because your status as a Bitter Clinger and Gun Nut makes you a potential terrorist threat. Or it, could be even worse; you could be an American citizen who's actually foiled a terrorist plot only to realize that you're in for trouble because you've saved republicans, and have come to the realization that Lefties are full of shit in the process.
In the meantime, DHS is working diligently to bring you the state-of-the-art in Homeland Security and Terrorist Catching Technology Thingies. Do read the comments and product reviews, please. They'll make your day!