Politico: An environmental group is rolling out a new tactic today to fight the Keystone XL pipeline: an animated video showing every significant oil, gas and chemical pipeline spill in the U.S. since 1986. The group, the Center for Biological Diversity, hopes the video will go viral and says its aimed at stirring up enough public awareness of the pipeline industrys troubles to put pressure on three key Democratic senators Bill Nelson of Florida, Michael Bennet of Colorado and Amy Klobuchar of Minnesota...