The first day of a historic U.S. visit by Vietnam's prime minister had a rocky start yesterday, as hundreds of noisy protesters lined the street outside his Seattle hotel and others heckled him at an afternoon news conference. Images from Phan Van Khai's visit." Phan Van Khai, the first Vietnamese prime minister to visit the United States in the 30 years since the Vietnam War ended, yesterday kicked off his weeklong, multistate tour by urging Vietnamese emigres to help strengthen relations between the two nations. Vietnamese Americans must recognize they "have the same roots," Khai said through an interpreter. "The...