I could just imagine someone walking through airport security naked wearing nothing but a bumbag. Just makes me think of some of the stuff the guys do on jackass. (not calling you a jackass by the way. lol just the name of the program).
But on a serious note would the airport even allow you to walk through security naked? Im certain theres going to be set policies or laws on it, maybe clearing it with the airport first might be a good idea.