**FILE** Russian President stands at the tomb of the Hungarian Prime Minister Imre Nagy in Budapest, Hungary in this November 11, 1992 file photo. Former President Boris 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/DietherEndlicher, File)