I was inclined to think the same until some folks at NASA started taking it seriously. Remember, the list of people who were wrong about scientific advances is long and includes some prominent names (at least at the time of their skepticism). Examples: cars will never reach 60 MPH, powered flight is impossible, rockets won't work in space, controlled nuclear fission is impossible.
http://newenergytimes.com/v2/government/NASA/20110922NASA-Zawodny-GRC-LENR-Workshop.pdf
If it turns out to be practical, it will be the most significant energy discovery in history. One quote from the slides I linked:
Total replacement of fossil fuels for everything but synthetic organic chemistry
Every single decision Obama makes is to harm America.