They Play Volley Ball In N. Korea?

Here's an interesting story:

Nuclear volleyball  
    Intelligence photographs of North Korea's nuclear test site showed technicians playing volleyball this week near the tunnel where a nuclear device was unsuccessfully set off on Sunday.
    The facility where the test took place was identified by U.S. officials as a North Korean science and technology research center near the town of Kilchu and the northeastern coast.
    Very high-resolution satellite images obtained by the Defense Intelligence Agency showed the volleyball game being played near dormitories at the facility.
    The Japanese intelligence agency also had access to the photographs, and according to U.S. defense officials, they reported that a sports activity so close to a nuclear site was inconsistent with post-nuclear testing precautions, since the underground tunnel where the test took place was located several hundred yards away.