(Clearwisdom.net) On September 12 and 13, 2007, Colorado Falun Dafa practitioners participated in a World Friendship Fall Festival on the University of Colorado campus in downtown Denver. The practitioners demonstrated the Falun Gong exercises, distributed truth-clarification materials and passed out many handmade bookmarks to promote Falun Dafa. Over 400 students, staff, and faculty members signed the petition form asking the Chinese Communist Party to end the persecution of Falun Gong. People expressed their sympathy for the practitioners who have been suppressed during the eight-year-long persecution and their anger at the CCP's crime of harvesting organs from jailed, living practitioners.