Fracking's Achilles' Heel
It's not very often that someone starts his career as a geologist and then winds up as governor, but John Hickenlooper, the governor of Colorado, can make that claim.
"We had fracking when I was a working geologist in 1981," he told me Monday. "It was very primitive. What really changed the world is when we got horizontal drilling. It was a technique that allowed you to recover a lot more natural gas."