Having just flown out of Dulles, I can confirm the security there sucks - "Dulles security treat Pakistani military officers as terrorists."

United Airlines and Dulles security treat Pakistani military officers as terrorists - Boing Boing:

"United Airlines threw nine high-ranking Pakistani military officers off a Washington-Tampa flight on Sunday and turned them over to Dulles security, who detained and grilled the men. The officers were on a junket in the USA, and had been travelling extensively; one of them said words to the effect of, 'I hope this is my last flight.' This was interpreted as a terrorist threat by a flight attendant. Dulles security did not let the men contact their embassy or the US military officials who were hosting them."