When Congressman Mike Simpson first proposed breaching the four lower Snake River dams to preserve imperiled salmon about 18 months ago, all he had were incentives.

When he called for a “Northwest solution that ends the salmon wars and puts the Northwest and our energy systems on a certain, secure and viable path for decades and restores Idaho’s salmon,” Simpson could only offer ways to insulate Lewiston-Clarkston and the Inland Northwest from the economic fallout that would follow a diminution of navigation, hydropower and irrigation.