Special Representative for Afghanistan and Pakistan Richard Holbrooke collapsed today during a meeting in Secretary of State Hillary Clinton's office, officials said. According to Democratic sources, Ambassador Holbrooke, Secretary Clinton's top aide for the region, gasped and was clearly undergoing a medical situation when he collapsed. He is said to have walked out of her office on his own power and was tended to by medical personnel at the State Department before being transported to George Washington University Hospital where to be treated for a blood clot. State Department spokesman P.J. Crowley refused to confirm Ambassador Holbrooke's condition, but confirmed...