A U.S. greenback collapse would set off catastrophic world upheaval, warns Dmitry Medvedev, describing a looming “explosion” with grave penalties for the complete world economic system. Medvedev Warns of Grave International Havoc if US Greenback Bubble Bursts Dmitry Medvedev, Deputy Chairman of the Russian Safety Council, has cautioned that the “greenback bubble” might ultimately rupture, probably triggering […]