 In March 1999, North Korea agreed to grant the U.S. "satisfactory access" to the site.The U.S. inspection in spring 1999 showed that the Defense Intelligence Agency assessment was wrong.In October 2000, during Special Envoy Jo Myong Rok's visit to Washington, and after two visits to the site by teams of U.S. experts, the U.S. announced in a Joint Communiqué with North Korea that U.S. concerns about the site had been resolved.