Seoul's National Security Advisor says no need to fret over the norks attempting a nuke test:

Concerns surfaced recently that the communist state might test an atomic bomb to confirm its possession of nuclear weapons to the outside world, following revelations that it halted the operation of a key nuclear reactor to harvest fissile material from spent fuel rods.

However, Seoul's National Security Advisor Kwon Jin-ho has dismissed such concerns as unfounded.

"So far, no unusual moves have been detected," he told CBS radio, a local Christian broadcaster. "Such talk stems from misgivings or apprehensions in a corner of the U.S. We don't need to take it seriously."

North Korea's suspension of the reactor fueled fears that the country is intent on becoming a nuclear state, rather than being content to use its atomic bomb programs as a bargaining chip for economic and other benefits.