| 1 | But there's a snag in its widespread adoption as a fusion fuel. | |
| 2 | Not fission, whereby uranium and plutonium breaks up in pieces, but fusion. | |
| 3 | Some scientists wonder whether cold fusion is a similar beast. | |
| 4 | DESPITE what you might have heard, cold fusion never really went away. | |
| 5 | If cold fusion worked, it could provide an inexhaustible supply of clean energy. |