U.S. nuclear envoy Stephen Bosworth, right, shakes hands with his South Korean counterpart Wi Sung-lac before their meeting in Seoul, South Korea, Monday, Nov. 22, 2010. Bosworth's trip to Asia for ... more 
U.S. nuclear envoy Stephen Bosworth, right, shakes hands with his South Korean counterpart Wi Sung-lac before their meeting in Seoul, South Korea, Monday, Nov. 22, 2010. Bosworth's trip to Asia for talks on North Korea comes as new satellite images show construction under way at North's Yongbyon. less 
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Associated Press | Photo By Lee Jin-man
Tue, Nov 23, 2010 9:00 AM EST