I have a return portion of an international flight connecting in Dulles. It might so happen that I need to stay in DC for a few days on business, rather than continuing on the last leg of my domestic connection. I *will* have checked in luggage and I am assuming that from Europe they will probably insist on checking it through to final destination.

Do international to domestic connections usually go through the separate "transfer" immigration/customs area in terminal C? If they do - do they get luggage there too? Once you get luggage in that area - is there a chance to return to main terminal with luggage, or will I be forced to re-check it (or go through security that won't let it into terminal)?

Any insight appreciated!