@ Anonymous Coward @ Michael Smith
'Urr, supposedly this had the oomph to reach Alaska. Yes, Alaska, the beating heart of America.'
Sarah Palin country - the missile suddenly seems quite appealing right now doesn't it?
'If this vehicle can put a payload into orbit, it can deliver that same payload to any point on the Earth.'
Not necessarily, to return the payload to Earth you need to include the mass of the retros and the heat shield. Throw those in and you may not have enough useful mass for a warhead.
And on a related note. Thanks to Pakistan, our dear ally in the war on terror, North Korea MAY have the design for a nuclear missile warhead. Dr. Abdul Qadeer Khan, the brains behind the Pakistani nuclear programme is known to have met up with North Korean scientists and exchanged information. Pakistan certainly has nuclear tipped missiles as they got their design from the Chinese.