Wall Street Journal: It isn't just a radical fringe of Americans who worry about the environmentand energy executives finally seem to have noticed. A couple of years ago at the energy industry's massive annual gathering, IHS CERAWeek in Houston, the people who pull oil and natural gas out of the ground were largely dismissive of the public's concerns about hydraulic fracturing, commonly known as fracking, said Jason Bordoff, director of the Center on Global Energy Policy at Columbia University. But this year, industry...