France Not Sure North Korean Blast 'A Reality'

Another country is weighing in on reports that North Korea has tested a nuclear bomb. A top French official says she's not sure "whether it was a reality or not."The French defense minister says some kind of blast with an explosive force of about half a kiloton -- or about 500 tons of TNT -- went off. But France's atomic energy commission hasn't confirmed whether it was caused by a nuclear device.