Enbridge pumping station, Mackinaw City, Feb. 7, 2023 | Laina G. StebbinsWhile attorneys for a major Canadian pipeline company argue that federal regulators hold sole authority in regulating pipelines across the country, a recent report argues that national-level oversight is not strict enough to prevent oil spills and other safety concerns. Enbridge, which operates the controversial Line 5 pipeline, is currently embroiled in legal battles with…