I think I may have found another reason for the disruption at the Philadelphia airport. Yesterday, $1 billion dollars in cocaine was confiscated at the airport by I assume the DEA. No idea where it came from, but so much for smuggling it over the Mexican border by foot. A haul like this definitely could have caused disruptions to the flight schedules at the airport. Personally, I've never had a flight changed because of a 'cocaine bust', but I suppose there's a first time for everything.