Hello! So I came back from Paris to Newark in the beginning of March. We went through customs as usual and the agent let me and my sister through without having to pay duty fees (he looked at our passports and saw my sister's birthday had just passed so he let us go). However, passing through baggage claim and trying to leave the airport, there were 2 agents at the exit doors checking everyones passport. That is where got stuck with an agent who said "you need to pay duties for these" and sent us to the area where someone calculates how much you owe. In all my times of travel, I nor anyone I know has ever been stopped by an agent right at the door to exit the airport. Has this ever happened to anyone? I thought there was no security required after baggage claim and literally just before leaving the airport. (To clarify, there was a line of people having their passports checked so everyone was subject to this, not just me and my sister)