U.S. Secretary of Agriculture Tom Vilsack, right, and China' s Vice Premier Wang Qishan, left, shake hands before a delegation leaders meeting Thursday Oct. 29, 2009 in Hangzhou, China. They participate the 20th China and U.S. joint commission on commerce and trade. AP Photo logo AP Photo 1 month ago

U.S. Secretary of Agriculture Tom Vilsack, right, and China' s Vice Premier Wang Qishan, left, shake hands before a delegation leaders meeting Thursday Oct. 29, 2009 in Hangzhou, China. They participate the 20th China and U.S. joint commission on commerce and trade.