Former Soviet leader Mikhail Gorbachev (C) is presented with the Liberty Medal by former U.S. President George H.W. Bush (R) and Constitution Center CEO and President Joe Torsella at the National Constitution Center in Philadelphia, Pennsylvania, September 18, 2008. Gorbachev is the 2008 recipient of the award that recognizes individuals and organizations that have demonstrated leadership and vision in the pursuit of liberty of conscience or freedom from oppression, ignorance, or deprivation. REUTERS/Tim Shaffer (UNITED STATES)