"6-Nation North Korean Nuclear Talks in Doubt"

According to this article, political analysts outside of North Korea are doubtful of the six-party talks taking place anytime soon. This comes only a week after speculation over North Korea’s possible missile testing over Japan.

North Korea initially projected that a six-party meeting would take place in early November, yet after South Korea’s nuclear weapons testing was disclosed, North Korea refused any talks until the US stopped its “hostile policy based on double standards” toward North Korea.

What does everyone think? Is North Korea justified in its refusal to negotiate over its nuclear weapons program?