Bill Gates pushing new nuclear reactor technology

The Register has reported that Bill Gates is in discussions with the Chinese Government about a new breed of nuclear reactor. Apparently these reactors would be fuelled by depleted uranium, something normally thought of as radioactive waste. To quote from the article:

Papers published by the company claim that the system is 40 times as efficient as current light water reactors and that there is enough available fuel to provide 10 billion people with US per-capita energy usage levels for million-year timescales. As an additional bonus, depleted uranium is plentiful, cheap, and is of limited use in atomic weaponry.

Bill Gates is a shareholder in the company developing the technology.