Can a U.S. senator really be this uninformed? Casey on 'fracking'

Sen. Bob Casey, D-PA, is campaigning against hydraulic fracturing in natural gas drilling by introducing a bill to remove the long-standing exemption in the Safe Drinking Water Act that allows energy companies to use the process.

Hydraulic fracturing – or “fracking,’ as it is more commonly known in the industry – involves injecting liquids, 95 percent of which are water, into rock formations far below the land surface in order to create access to vast quantities of natural gas. Casey’s home state of Pennsylvania has a major portion of one of the country’s largest undeveloped natural gas resources, the Marcellus Shale Formation.