South Korea's presidential candidate Moon Jae-In of the opposition Democratic United Party waves to supporters during his election campaign in Seoul on December 18, 2012. The two rivals for South Korea's presidency made a final pitch to voters on the eve of an election that looks set to go down to the wire and could produce the country's first female leader.  AFP PHOTO / JUNG YEON-JE        (Photo credit should read JUNG YEON-JE/AFP/Getty Images)