Journal Star Op-ed by Michael Whatley (NGP Photo).  Last month, the federal government released yet another report showing what many of us have known for a long time: the Keystone XL pipeline, which will deliver crude oil from oil fields in Montana, the Dakotas and Canada to refineries in Texas, will be a safe and necessary addition to America's energy infrastructure and its more than 70,000 miles of existing pipelines.  As the U.S. Department of State noted in its final Environmental Impact Statement, the pipeline would "have a degree of safety [...]