North Korea preparing another test?

According to South Korean intelligence, at least that's what the AP says, North Korea may be preparing for another nuclear test.

Doesn't seem advantageous for Kim Jong-il right now, but then again, he's a bit unpredictable, and then again, South Korean intel reports have been contradictory...

"It is clear there are movements at Punggye-ri after the (previous) nuclear test," one military official was quoted as saying. "We are closely monitoring to see if these are preparations for a second nuclear test."

...Meanwhile, more unidentified South Korean government officials said they are trying to confirm whether a new facility that has been built at the site could be part of preparations for a second nuclear test, the JoongAng Ilbo newspaper reported Saturday.

This story itself is rather wishy-washy, I don't even know why I'm posting on it. Oh well, should anything come of this it will be more of the voluminous proof that the UN is ineffective -to say the least.