Satellite photos show North Korea digging new nuclear tunnel - report

Satellite photographs from October and early November indicate North Korea is digging a new tunnel for nuclear testing, but there are no signs that a such a test is imminent, a U.S. research institute said on Wednesday. A report on 38 North, a North Korea monitoring website run by Johns Hopkins University's School of Advanced International Studies in Washington, said the images showed significant construction since April at Punggye-ri, on North Korea's east coast, where three previous nuclear te