Bill Gates and Chad Holliday - Energy sector poised for innovation -- with the right spark

Bill Gates and Chad Holliday - Energy sector poised for innovation -- with the right spark: "And despite talk about the need for '21st-century' energy sources, federal spending on clean energy research -- less than $3 billion -- is also relatively small. Compare that with roughly $30 billion that the U.S. government annually spends on health research and $80 billion on defense research and development."