It's real, it's here, and it's ready to go, as soon as they can find a wall socket to plug it into...
North Korea has announced that it has made significant progress towards the development of thermo-nuclear power.
It is a claim that is likely to be met with some scepticism.
Despite hopes that the technology can produce large quantities of cheap, clean energy, no country has so far succeeded in making it work.
North Korea is one of the world's poorest countries and struggles to generate enough electricity for lighting and other basic needs.
The statement, carried by North Korea's official state media, said the country's scientists had succeeded in carrying out nuclear fusion.
Laboratory demonstrations of the process, known to release large amounts of energy, are nothing new.
But the North Koreans appear to be claiming to have gone much further, by building what they describe as a "unique thermo-nuclear reaction device"
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Pyongyang says its latest scientific breakthrough coincides with the birthday of the country's founder, and eternal president Kim Il-sung - not the first time it seems that the laws of nature have been bent in his honour.
http://news.bbc.co.uk/2/hi/asia-pacific/8676678.stm