
New satellite imagery shows activity at North Korean underground nuclear test site
CNN
New commercial satellite imagery is showing some of the clearest signs to date that North Korea is tunneling again at its remote underground nuclear test site in a way that could potentially shorten the time it needs for its next test.
The April 3 imagery from Planet shows a new so-called crosscut tunnel, according to Jeffery Lewis, a weapons expert and professor at the Middlebury Institute of International Studies.
"The telltale sign is the pile of spoil in front of the tunnel. That's rock from inside the mountain as they dig the new tunnel," Lewis said.
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