Environmental Leader: If nothing else, the Keystone XL Pipeline triggered a debate on just how safe it is to transport oil and natural gas by pipeline. If there is an accident, the damages can add up and it can be tough to clean up. Thats why the Native Americans in North Dakota are protesting the construction of a line there one that they say has the potential to destroy their water quality. With nearly 300,000 miles of long distance transmission pipelines carrying natural gas and 171,000 miles of those pipes moving...