FILE-In this file photo taken on May 12, 1994, Chinese dissident Wang Juntao discusses human rights during a news conference at the National Council on Chinese Affairs in Washington. Three U.S.-based dissidents involved in 1989 pro-democracy protests in Beijing's Tiananmen Square, including Wang Juntao, have been denied visas to discuss the demonstrations at a Hong Kong conference, an organizer said Monday, May 24, 2009. (AP photo/Dennis Cook, File)