I have a 7 hour layover in January at IAD. The way I remember it from my last time I took a connecting flight I had to pick up my own luggage and get it over to the recheck, from there I got the impression that I couldn't exit the airport but had to get myself through TSA and into the gates. Am I wrong on this? Is there any way to get out and to the museum after rechecking your baggage following an international flight?