Same shit happened to me when I tried to board a flight to England. The TSA was all like, "Sir, you aren't allowed to have a firearm in the airport or on the plane." I explained - in a very rational way - that I was going to Europe, that they have different laws there, and I was very likely to get shot at when I was there (like in Ireland or Romania or China where they have a lot of gangs) AND that I was NOT about to allow another 9-11 incident occur on my watch. They said something about it being a "felony" and "illegal." I asked if they also considered a little thing called the "Constitution of the United States of America" to be illegal too. I told them all they could go move to Cuba because they were communist and told them I'd just buy a row boat and make my own way to England, guns and all.