ISLAMABAD, Pakistan, November 16, SPA -- A senior U.S. envoy arrived here today on a visit to Pakistan. Deputy Secretary of State John Negroponte landed in thecapital, Islamabad, late Friday afternoon, U.S. Embassyspokesman Elizabeth Colton was quoted as saying by the Associated Press. Details of Negroponte's schedule were not immediatelyavailable.--SPA www.spa.gov.sa/500296