HEONGGYE, SOUTH KOREA - JANUARY 04: South Korean soldiers participate in cold endurance training during winter military exercises on January 4, 2011 in Heonggye, South Korea. Tensions remain high ... more 
HEONGGYE, SOUTH KOREA - JANUARY 04: South Korean soldiers participate in cold endurance training during winter military exercises on January 4, 2011 in Heonggye, South Korea. Tensions remain high between the two Koreas, following an exchange of artillery fire last November on the South Korean border island, Yeonpyeong. (Photo by Jeon Heon-Kyun-pool/Getty Images) less 
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Tue, Jan 4, 2011 4:03 AM EST