DrumBeat: July 2, 2009

The alternative choice – Steven Chu wants to save the world by transforming its largest industry: energy WHETHER Steven Chu, America’s energy secretary, would be flattered or horrified by the comparison is unclear, but he and Margaret Thatcher have something important in common. They are both scientists who have risen to political power. That Mr Chu has a Nobel prize for physics, whereas Lady Thatcher swiftly abandoned chemistry for the more lucrative pastures of the law, does not make the