**FILE** Former President George Bush and Russian President Boris Yeltsin are shown as they ride in a golf cart at Camp David, Md. in this February 1, 1992 file photo. Yeltsin, who engineered the final collapse of the Soviet Union and pushed Russia to embrace democracy and a market economy, has died, a Kremlin official said Monday, April 23, 2007. He was 76. (AP Photo/Doug Mills, File)