CHENGDU, CHINA - FEBRUARY 5: (CHINA OUT) The FedEx Panda Express aircraft carrying American-born giant pandas Tai Shan and Mei Lan arrives at the Chengdu Shuangliu International Airport on February 5, 2010 in Chengdu of Sichuan Province, China. Four-and-a-half-year-old male Tai Shan, born at the National Zoo of Washington D.C., and three-year-old female Mei Lan born at Zoo Atlanta, were sent back to Sichuan today under the agreement for global giant panda preservation. (Photo by China Photos/Getty Images)
