BOISE, Idaho (AP) — A coalition of 17 environmental groups is speaking out against a key part of a sweeping plan to remove the lower Snake River dams to save salmon and steelhead. The groups said in a letter to Democratic senators in Oregon and Washington that the 35-year moratorium on fish- and dam-related lawsuits included in Idaho Republican Rep. Mike Simpson’s proposal was too high a price to pay in exchange for dam removal. Simpson last month released his $33 billion legislative concept to breach the dams and help affected communities, including farmers and cities that rely on shipping commerce such as Lewiston, Idaho.