(January 6, 2021, 12:57 PM EST) -- WASHINGTON, D.C. — Two Native American tribes and two environmental groups filed suit Dec. 24 in District of Columbia federal court to challenge the U.S. Army Corps of Engineers’ issuance of a permit authorizing replacement of a 338-mile section of an oil pipeline in Minnesota and North Dakota, saying the project violates federal laws and treaties and harms the tribes....