Mealey's (April 19, 2018, 10:23 AM EDT) -- WASHINGTON, D.C. — U.S. Supreme Court justices grappled April 18 with how to best balance the treaty-guaranteed fishing rights of several Indian tribes in the state of Washington with the state’s responsibility to honor the treaties by correcting hundreds of fish-blocking road culverts at a cost of billions of dollars, hearing arguments from the state, the United States and the tribes (Washington v. United States, et al., No. 17-269, U.S. Sup.)....