High-level military and intelligence officers from the U.S. and Pakistan are meeting Wednesday, both here and there, trying to ratchet down tensions in a troubled relationship between two allies. The U.S. has suspended hundreds of millions of dollars in military aid to Pakistan. That came after Adm. Mike Mullen, the chairman of the Joint Chiefs of Staff, lent credence to reports that Pakistani authorities sanctioned the murder of a journalist who was critical of the Pakistani intelligence service. Pakistan labeled Mullen's remarks "extremely irresponsible and unfortunate." That exchange compounded ill-feelings generated by the killing of Osama bin Laden: Pakistan's anger that its sovereignty had been violated; American anger that bin Laden had been hiding in the middle of an army garrison town. Robert Siegel speaks with Husain Haqqani, Pakistan's ambassador to the United States, about the deteriorating relationship between the United States and Pakistan.