
Lei Feng, a half-real, half-fabricated man depicted by the Chinese government as the communist model soldier, has become a political icon. (Associated Press)

Lei Feng, a half-real, half-fabricated man depicted by the Chinese government as the communist model soldier, has become a political icon. (Associated Press)

** FILE ** In this Nov. 7, 2012, photo, U.S. and Chinese national flags are hung outside a hotel during the U.S. presidential election event, organized by the U.S. embassy in Beijing. As public evidence mounts that the Chinese military is responsible for stealing massive amounts of U.S. government data and corporate trade secrets, the Obama administration is eyeing fines and other trade actions it may take against Beijing or any other country guilty of cyberespionage. The Chinese government, meanwhile, has denied involvement in the cyber-attacks tracked by Mandiant. (AP Photo/Andy Wong)

** FILE ** In this Nov. 7, 2012, photo, U.S. and Chinese national flags are hung outside a hotel during the U.S. presidential election event, organized by the U.S. embassy in Beijing. As public evidence mounts that the Chinese military is responsible for stealing massive amounts of U.S. government data and corporate trade secrets, the Obama administration is eyeing fines and other trade actions it may take against Beijing or any other country guilty of cyberespionage. The Chinese government, meanwhile, has denied involvement in the cyber-attacks tracked by Mandiant. (AP Photo/Andy Wong)

Rigs belonging to PetroChina pump oil near the banks of a snow-covered lake in Daqing in northeastern China's Heilongjiang province. Exxon Mobil is pumping less oil than PetroChina, a company formed just 13 years ago by the Chinese government to better compete for the world's oil and natural gas. (Associated Press)

North Korean defectors wearing masks to cover their faces participate Feb. 21, 2012, in a rally against the Chinese government's arrest of North Korean refugees, near the Chinese Embassy in Seoul. The protesters called for China not to send North Korean refugees back to their country, saying those refugees might be executed. (Associated Press)

Liu Xia, wife of imprisoned Nobel Peace Prize laureate Liu Xiaobo, is cut off from the outside world by the Chinese government. (Kyodo News via Associated Press)

** FILE ** Sen. Carl Levin (right), Michigan Democrat, and Sen. John McCain, Arizona Republican, confer before talking to the media about the Chinese government's failure to cooperate in an ongoing Senate Armed Services Committee investigation into counterfeit parts in the Department of Defense's supply chain, on Capitol Hill in Washington on Tuesday, June 14, 2011. (Associated Press)

FILE - In this file photo taken Sunday, Feb. 27, 2011, a man, center, is detained by police officers near the planned protest site located in Shanghai, China. Anonymous calls online for pro-democracy protests in China have prompted the Chinese government to launch a sweeping campaign of repression to keep the "Jasmine Revolution" from reaching the country. (AP Photo/Eugene Hoshiko, File)