The dispute over the cross-border Line 5 pipeline is entirely for Michigan to deal with, the state's attorney general argues in a legal brief released Wednesday that flatly rejects Canada's depiction of a foreign-policy matter that Ottawa and the White House must resolve.
Scientists, conservationists and Indigenous people have been calling for the 65-year-old pipeline to be retired for years, saying it's in disrepair and could cause a devastating spill.
