http://cosmiclog.msnbc.msn.com/archive/ ... 69562.aspx
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The chance:Of course, the challenges were selected for long-term development rather than short-term stimulus. For instance, it's not likely that engineers will figure out how to provide cheap, commercial fusion power in the next couple of years (though there's always a chance).
http://cosmiclog.msnbc.msn.com/archive/ ... 18741.aspx