Hundreds of miles of new pipelines are needed to transport Marcellus Shale gas to market. There’s also miles of aging gas pipelines beneath cities and towns. ProPublica takes an in-depth look at their safety.
Over the last few years a series of incidents have brought pipeline safety to national – and presidential – attention. As Obama begins his second term he will likely make a key decision on the controversial Keystone XL pipeline, a proposed pipeline extension to transport crude from Canada to the Gulf of Mexico.