I'm fairly excited at the prospect of an AA/US merger, and I assume that the resulting airline would be a OW partner. Washington is pretty *A dominated. AA has a bunch of slots at DCA, although it has been downguaging to their legagy hublets, like BNA, STL, and RDU, and US has heaps. BA has decent service at IAD for longhauls. But, generally, OW has apparently surrenderd to *A in the WAS market. To the extent (whatever that may be) that passengers are alliance loyal versus airline loyal, would a beefed up DCA presence encourage LAN, Iberia, JAL, Cathay, Finnair, and Malev (just kidding), to take IAD more seriously? I can only imagine that the impacts would be subtle and not prone to objective measure. The question really would be whether WAS would remain a *A realm. One possibility would be Iberia's return to IAD, others might include JAL 787 service to IAD, a LAN presence at IAD (UA EZE service having shifted from EZE to EWR) or (let me dream) BA's A319 all business service to DCA, with preclearance at SNN (DCA slot controls being an obvious issue). Just thinkin'. I can take someone sayin' I'm an idiot.