021612 Senator Murkowski and Secretary Chu on "Fracking" and the "Smoking Gun"

Senator Murkowski asks Secretary Chu about $2MM increase in natural gas R&D initiative with EPA and USGS on impacts of fracking, comprehensive impacts identified in advisory committee report, why warrant second investigation, why second run on this, raises concern that trying to find a "smoking gun" on fracking. Secretary Chu responds that the purpose is to drive "responsible fracking" - helping with the technology's rapid advances, become information clearinghouse.