**FILE** Russian President Boris Yeltsin and his wife Naina are shown as they wave goodbye prior to departing from Seoul, after an official three-day visit in this November 20, 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/Yun Jai-hyoung, File)