Some opponents of fracking raise legitimate concerns, but some are highly exaggerated.
The documentary "Gasland," by environmental activist Josh Fox, is fraught with so much bias that the industry produced a counter, "Truthland."
Experts say both pro- and anti- drilling movements have good points. Jeff Frankel, an economics professor at Harvard, says the fracking revolution is good news from a national security and economic standpoint, but still urges caution.
Says Penn State geologist Terry Engelder: "There never will be a risk-free gas industry in Pennsylvania, just like there never will be risk-free driving a car."
Producing energy will always have costs, but the shale drilling boom is a boon to the nation's economy.
The industry can help itself by following Hofmeister's call for greater transparency.