FILE - In this Feb. 25, 1972 file photo, then U.S. President Richard Nixon and first lady Pat Nixon enter the palace grounds of Beijing's Forbidden City as heavy snow falls on the Beijing, China. In the background is a fleet of Chinese made Hong Qi limousines. China is reviving the illustrious Red Flag marque, better known at home by its Chinese name, Hong Qi, courtesy of a government-backed program to promote domestic brands that dovetails neatly with efforts to step-up China’s diplomatic profile, partly through a greater emphasis on the pomp and circumstance accompanying state visits. (AP Photo, File)