But negotiations broke down last year over Pyongyang's refusal to accept a verification plan for the declaration it made of it nuclear holdings and activities.

VOA: standard.2009.11.11

Choi Jong-kun, an international relations professor at Seoul's Yonsei University, thinks the declaration that Pyongyang violated international law is mainly for the consumption of angry South Koreans.

VOA: standard.2009.09.11

But negotiations have been stalled for months over Pyongyang's refusal to accept a verification program for the declaration of its nuclear holdings and activities it made last June.

VOA: standard.2009.03.25

China Foreign Ministry spokesman Hong Lei said at a daily news briefing that China has "expressed our regret" over Pyongyang's declaration.

WSJ: North Korea to Restart Yongbyon Nuclear Plant

Ambassador Bolton dismissed North Korea's threats that U.N. sanctions would be a declaration of war, saying that the consensus opinion holds that Pyongyang has hurt its standing with its tests and its public statements.

NPR: U.S. Submits New U.N. Punishments for N. Korea