Could Starships Use Cold Fusion Propulsion?

Could Starships Use Cold Fusion Propulsion? : Discovery News: "Voyager 1 is now leaving solar system, making it the first manmade probe to enter interstellar space. That's quite an achievement, and it only took 30+ years. But if we're going to get serious about boldly going where no man has gone before, and send humans beyond the solar system, we're gonna need a cheap and plentiful energy source to help us get there."