An old problem: Aging pipelines lead to deadly explosionsThe natural gas pipeline in the United States is vast, sprawling across 2.5 million miles in a complex pressurized system that delivers a quarter of the energy consumed nationwide, according to the American Gas Association.

The natural gas pipeline in the United States is vast, sprawling across 2.5 million miles in a complex pressurized system that delivers a quarter of the energy consumed nationwide, according to the American Gas Association.http://feeds.foxbusiness.com/~r/foxbusiness/latest/~3/MebJ7ezgc7E/an-old-problem-aging-pipelines-lead-to-deadly-explosions