Wangpo Tethong, a Switzerland-based campaigner for Tibetan self-rule unfurled a banner referring apparently to Chinese President Hu Jintao which reads "Hu, you can't stop us!" in front of a countdown clock for the 2008 Olympic Games near Tiananmen Square in Beijing, China, Wednesday, March 8, 2008. Beijing says Tibet has been part of China for centuries, while many Tibetans say it was independent for much of that time. Communist forces marched into the region in 1950 and its spiritual leader, the Dalai Lama, fled into exile in 1959 after a failed uprising. (AP Photo/Ng Han Guan)