WASHINGTON, April 1 (UPI) -- Mention Mongolia to most people, and their minds conjure up hordes of bloodthirsty horsemen under Genghis Khan sweeping across Eurasia's vast grasslands, cutting a swathe of terror and destruction. In a world increasingly concerned with reliable sources of energy, however, Mongolia is rapidly becoming a major player, and an international race is on to secure access to one of its most valuable mineralogical deposits, uranium.