Garden,
I found that article about the supposed warhead found in Alaska that you referred to in the Korea paper. I couldn't find any reference to it in any US newspaper.
The thing is, is that the quote was from a Japanese foreign minister referring generically to a 'US document' at a conference with 5 other countries while he was trying to get the other countries (including China) convinced that North Korea has this capability. I just don't think that is credible at all.
I would be more inclined to take that 'story' seriously if one of our own officials confirmed exactly what, if anything, was found.
Here is a good article that speaks to the conversation that we're having:
Assessment of the North Korean Missile Program
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Dr. David C. Wright, Co-Director and Senior Scientist, Global Security Program, Union of Concerned Scientists; Research Scientist, Security Studies Program, MIT.
February 25, 2003
There is significant concern in the United States about the North Korean ballistic missile program and its ability to threaten US territory and allies. Since the mid-1980s, North Korea has?likely with significant foreign assistance?developed and produced a series of ballistic missiles of increasing range. It now deploys missiles with ranges able to reach all of South Korea and Japan, and is developing longer range missiles. It is also known to have transferred missile technology, as well as complete missiles, to other countries.
Assessments of North Korea?s military capability often portray North Korea as possessing a long-range nuclear missile capability, or as able to rapidly acquire one. This is not true.
North Korea has short-range variants of the Scud missile, with ranges up to 500-600 kilometers for a payload of 500 kilograms, that are well tested. These missiles can reach all of South Korea with nuclear, biological, or chemical warheads, if North Korea has developed such warheads for missile delivery. North Korea has sold large numbers of these missiles to other countries.
The longest range missile currently deployed by North Korea is the No Dong missile, with an estimated range of 1,300 kilometers for a payload of about 700 kg. Such a range would allow North Korea to target all of Japan. North Korea is believed to have flight tested the No Dong only once?in May 1993. While Pakistan may have provided North Korea with information from the tests of its Ghauri missile, which is believed to consist largely or entirely of North Korean technology, and North Korea is believed to have used a modified No Dong as the first stage of the Taepo Dong 1 (TD-1) launched in 1998, North Korea nonetheless has limited information about the reliability and accuracy of the missile. The No Dong uses a larger, more powerful engine than the Scud missile. This engine, which is believed to have been developed with foreign assistance, is believed to be used in the longer range missiles North Korea is developing.
The only test of a longer range missile occurred in August 1998, when the three-stage TD-1 missile was launched in an attempt to place a small satellite in orbit. This effort was not successful due to a failure of the missile?s third stage. The test did demonstrate for the first time North Korea?s technical capability to launch missiles with multiple stages, as well as its access to solid fuel technology, which was used in the third stage. However, the missile cannot be considered operational without further testing.
Even if the TD-1 were successfully tested in the future, it would have limited capability and could at best deliver a small payload as far as Alaska or Hawaii. As noted in the September 1999 National Intelligence Estimate, if North Korea decided to develop an intercontinental range missile it would likely try to develop the Taeop Dong 2 (TD-2), which could carry larger payloads, rather than the TD-1.
The TD-2 has never been flight tested, although US National Intelligence Estimates (NIE) have stated since 1998 that it was believed ready for flight testing. Even if true, this does not mean that North Korea could quickly turn it into an operational missile once it decided to begin flight testing.
The TD-2 is significantly different than any missile North Korea has built or tested. It would be significantly larger than the TD-1, with a maximum diameter nearly twice that of the TD-1. It would be three times as massive as the TD-1 and would generate greater thrust, so that the mechanical stresses on the body would be more severe than on previous missiles. Moreover, North Korea is expected for the first time to use a cluster of four engines in the large first-stage booster of the TD-2, which increases the complexity of the missile. Most discussions of the TD-2 assume that it will include a third stage, which is required for the ranges usually attributed to it, but North Korea has not successfully launched such a stage.
Moreover, North Korea has not flight tested a reentry heat shield for a long-range missile, and would need to do so before it could use it to deliver a warhead.
As a result of these uncertainties, there is no basis for assuming that early tests of a TD-2 would be successful. Even if they were, some number of flight tests?possibly small but more than a couple?would be required to provide an estimate of the reliability of the missile. While North Korea might field a missile based on one or two tests, its confidence in its ability to use such a missile would be very low.