Harnessing the power of waves

San Francisco Mayor Gavin Newsom believes tapping into tidal and wave power is a swell idea. But how feasible and realistic is this new renewable-energy technology? CNET News.com's Kara Tsuboi sits down with the mayor to find out.

Harnessing the power of waves San Francisco Mayor Gavin Newsom believes tapping into tidal and wave power is a swell idea. But how feasible and realistic is this new renewable-energy technology? CNET News.com's Kara Tsuboi sits down with the mayor to find out.