Disappointing. Not that fracking is deleterious to water sources. But that noone goes into the exact reasons it is so. So far, the injection of water in the deep subterranean has not proven to be leaking into water supplies. Not yet, anyway (wait 20-40 years). It is the management of the drilling chemicals and water on the surface - spills, bad containment, open pits leaking - that are the largest risk.

No mention of the *smells*. I know I keep harping on this. But breathing in all those chemical smells has to be just awful for a person's health.

Don't ignore air pollution associated!