North Korea vowed to restart Archive nuclear facilities to the assembly line, mass production of fuel a terrible nuclear missiles library worried. But it may actually be a sign that Pyongyang needs more bomb fuel backup nuclear threat.
Despite the bluster, even if Pyongyang began to work today, the reactor, it can be a few years ago completed a painstaking process to create more weapons fuel. Experts say, North Korea announced that is also possible to maintain a leading position in the security, while trying to extract concessions, the United States and its allies fear, and strive to improve.
North Korea has declared itself a nuclear power plant, and threatened to expand its atomic weapons, a third nuclear test in the Korean Peninsula in February led to the recent rise of hostility. However, Arsenal, it is estimated that only a handful of crude oil equipment.
To assemble the weapon, which will make it become a real nuclear power, cache Korean scientists need more bomb fuel - weapons threat to the backup, and they want to build and perfect these weapons required to repeat the test.
"Despite its recent threat, North Korea has yet to have nuclear arsenals, because of its lack of fissile material, and has limited experience in the nuclear test," Siegfried heck, a nuclear scientist who has been regularly granted unusual a visit to the DPRK's nuclear facilities, saying: the answer Stanford University released this week, the International Security and Cooperation Center site.
North Korea's nuclear capability is a mysterious thing.
What is known is that it has needed for the production of fuel, can be used to build an atomic bomb - plutonium and uranium.
This will lead to serious long-term concerns about North Korea's announcement (Tuesday), it is "adjust and restart all facilities, its main Yongbyon nuclear complex, including a plutonium reactor shut down six years ago now, no nuclear part of the negotiations, and a uranium enrichment plant.
It also may be a sign gesture from Pyongyang week, the threats have not driven the United States and South Korea to negotiate nuclear disarmament-for-aid negotiations setbacks.
"What they really want is a security blanket and extortion tool" Ralph Cossa, president of the Hawaii Pacific Forum CSIS, a think tank, said in an email.
"Notice is a major political, designed to signal strength and intimidation. This should not necessarily be able to see a revelation about North Korea's ability and the intent, "Greg Tillman, a senior research fellow at the Arms Control Association in Washington, said in an e-mail.
Reactor in one of the final major nuclear facilities in Yongbyon plutonium enough power bomb within a year. Was closed in 2007 as part of the international disarmament negotiations, and blow up the cooling tower in a dramatic show of commitment to the now scrapped nuclear cooperation agreement. In 2010, North Korea launched an industrial-scale uranium enrichment facilities, which makes it an alternative route in order to create the bomb shocked many.
Estimated plutonium reactor restart facilities from three months to one year, according to experts.
North Korea has begun the construction of the reactor, it may be in operation earlier than expected, according to the research institutions in the United States, the analysis of recent commercial satellite imagery of the Yongbyon. Reconstruction cooling tower takes six months, but the construction of a 3-month 27-day photo display alternative cooling system, you may need a few weeks of work may have already started, the U.S. and South Korea at the Johns Hopkins University School of Advanced International Studies, said Wednesday that .
However, even if the reactor is up and running, Xhosa estimated before scientists can get more plutonium bomb, it will be two to three years.
There are other challenges, re-start the reactor.
The Korean scientists need to clean up, check for leaks, test components and replace those who are no longer working, no Huichon, nuclear experts in Daejeon, Korea, Korea Advanced Institute of Science and Technology.
"The nuclear material can be highly corrosive cleaning chemical equipment, post-processing of plutonium can be a daunting task," did not say that.
North Korea does not think that the possession of nuclear weapons, the missile can hit the United States in Seoul or U.S. allies to launch a direct attack is extremely unlikely, and know that the survival of a threat of military retaliation leadership.
Experts estimate that it has enough the plutonium four to eight crude oil plutonium-based weapons. But North Korea also did not show that it has mastered the technology, so that they can be placed on a missile narrow warheads, Pyongyang boasted - on Thursday - it has a smaller, lighter nuclear weapons ready strike in the United States
To backup boast, but Pyongyang needs more testing, which will be exhausted its nuclear fuel supply is limited. This may partially explain the motivation vowed to restart the Yongbyon.
Two large plutonium reactor engineering to stop, because the nuclear disarmament agreement, heck, North Korea claimed that both can be done to save them. North Korea is also considered to be a small experimental light-water reactor construction progress.
The North also suggested this week, it is to increase uranium enrichment efforts.
North Korea's uranium enrichment program, worried that Washington, because the centrifuge bomb-grade material, the fuel is easier than the heavy plutonium reactor to produce large amounts of heat can easily see satellite conceal. Prone to crude uranium bomb with plutonium, North Korea has a large natural uranium deposits.
Heck Show 2000 uranium centrifuges at Yongbyon in 2010, but it is not clear whether the centrifuges has been reconfigured to make highly enriched uranium. It is also unknown fuel in North Korea in the Feb. 12 test, its third since 2006, has confirmed that uranium-based nuclear test showed that the North Korean centrifuge manufacture highly enriched uranium.
North Korea set up own secret uranium program in its main nuclear facilities, the U.S. intelligence community, Bruce Klingner, a former U.S. intelligence officials, now in the American Heritage Foundation analyst think tank in Washington, unknowingly, in said in an e-mail. "Therefore, we do not know how many secret uranium enrichment site nor how much uranium weapons in North Korea, they can be produced annually."
However, scientists can not make a uranium bomb overnight.
2,000 centrifuges in North Korea is correctly configured and spinning 24 hours a day, every day of a year, they can only make one or two uranium bomb, Jeet Kune Y. Xu said, a nuclear expert at the Seoul National University.
North Korea's plans to restart a plutonium reactor, watching some like Pyongyang admitted its uranium enrichment program has not made much progress.
"Why go to a time-consuming and expensive to restart known and vulnerable plutonium production facilities trouble?" Tillman asked.
 



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