On another subject:
Also, while difficult to prove, I really think that the appropriate palms were greased by SWA and that the PHL authorities subsequently had no choice in the matter. To my mind, this is the only plausible explanation for PHL politicians to be so adamant about Delta's move. The decision, and monetary exchange, was probably made quite a while back before USAirways decided to expand international service to such a degree. The money was accepted and spent and could not be returned, so there was no alternative. Maybe I'm just being cynical, but this IS Philadelphia we are talking about.
Maybe progress can be made when the new, not-yet-bribed administration takes over City Hall. (Was that too cynical, too?)