President Trump, flanked by Commerce Secretary Wilbur Ross (left) and Energy Secretary Rick Perry (right), announces the approval of a permit to build the Keystone XL pipeline, in March 2017. Evan Vucci/AP hide caption
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The pipeline on rural farmland near the small community of Amherst, S.D., was likely damaged when it was installed in 2008, federal investigators say. DroneBase via AP hide caption
A protest sign sits in the proposed path of the Keystone XL Pipeline in Silver Creek, Neb. Nati Harnik/AP hide caption
The Keystone XL pipeline was intended to connect to this pumping station in Steele City, Neb. Keystone's parent company is suing the U.S. government because President Obama blocked the project. Nati Harnik/AP hide caption
Susan and Bill Dunavan own 80 acres of land in York County. Melissa Block/NPR hide caption