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New News on Nork Nuke 'ndentation
North Korea has dug a new 800 m-deep tunnel at its nuclear test site in Punggye-ri, North Hamgyong Province, it emerged on Sunday. Experts believe it will be ready for another nuclear test once it reaches a depth of 1 km.

A South Korean government source said, "If they continue digging the tunnel in Punggye-ri at the current speed, they could likely conduct a third nuclear test anytime after early April."

The tunnel had reached a depth of about 500 m by December. South Korean and U.S. intelligence agencies estimate progress based on satellite images of mounds of soil dug from the tunnel.
Posted by: Steve White 2011-02-21
http://www.rantburg.com/poparticle.php?ID=316544