I'm sure if they approve the Airtran/Southwest swap which eliminates effective competition for Southwest, then there's no way that the the Feds could justify swapping network carriers exchanging slots. Southwest will be way too big in the USA and way too big in BWI and being that they will be so huge, with or without slots, the Feds cannot come back and say that Southwest should get more slots in DCA. I can't wait to see what the DOT's answer will be.