MOSCOW, RUSSIA - NOVEMBER 10:  Mikhail Kalashnikov (L), the Russian inventor of the AK-47 assault rifle is greeted by Russian President Dmitry Medvedev (R) during festivities to celebrate his 90th birthday at the Kremlin on November 10, 2009 in Moscow, Russia. The globally popular AK-47 7.62mm assault rifle was developed by Kalashnikov in the 1940s and its various variants are still used worldwide by both regular armed forces and terrorist organizations due to its durability, expensive production costs and reliability. Getty Images logo Getty Images 2 weeks ago

MOSCOW, RUSSIA - NOVEMBER 10: Mikhail Kalashnikov (L), the Russian inventor of the AK-47 assault rifle is greeted by Russian President Dmitry Medvedev (R) during festivities to celebrate his 90th birthday at the Kremlin on November 10, 2009 in Moscow, Russia. The globally popular AK-47 7.62mm assault rifle was developed by Kalashnikov in the 1940s and its various variants are still used worldwide by both regular armed forces and terrorist organizations due to its durability, expensive production costs and reliability.