5 Crazy Things the Pentagon is Hoping Young Scientists Will Dream Up This Year 

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4. How to make nuclear fusion viable for military operations. Imagine if the U.S. military was roving about with a tiny transportable nuclear reactor? That's a bit like what DARPA is trying to make happen. They are hoping for scientists to come up with a safer and more stable design for a nuclear reactor to use for defense purposes."

http://inthecapital.streetwise.co/2013/12/11/5-crazy-things-the-pentagon-is-hoping-young-scientists-will-dream-up-this-year/