swamt    the scenario i see would be that aa moves from c to d  and its my understandin that c pier is the only other logical place they could put customs at..  im not 100% sure  but the source that told me that is fairly accurate.   but the big quest is whthr or not the state which runs bwi would allow ua dl and the new aa on the entire d concourse   as well as b6  and then where would spirit go to     but i do see why wn wants c pier  and that would consolidate all of their ops together in a b and c piers  but your def right things could change  our local news frugal mentioned recently that swa defintely wants c pier  and they would probably pay to have what they need to expand intl ops out of bwi