AdvertisementChen: I Didn't 'Understand What Was Happening'May 03, 2012NPR StafffacebookEmailIn this photo released by the U.S. Embassy Beijing Press Office, Chinese activist Chen Guangcheng (center) is seen with U.S. Ambassador to China Gary Locke (right) and U.S. State Department Legal Adviser Harold Koh before leaving the U.S. Embassy Wednesday for a hospital in Beijing. (AP)