(L to R) Eduard Shevardnadze, Mikhail Gorbachev and Alexander Yakovlev take a stroll during the heyday of perestroika. (Credit: RIA Novosti)
Documents show extraordinary achievements, Spectacular missed opportunities
Newly published records include report on Chernobyl, Gorbachev meetings with Mitterrand and Bush, and Gorbachev appeal for international aid in 1991