FILE - Elliott Moffett, a member of the Nez Perce Indian tribe, holds a sign that reads Free The Snake as he takes part in a rally to promote the breaching of dams on Feb. 4, 2019, at the Capitol in Olympia, Wash. A report released Thursday, June 9, 2022, said the benefits provided by four giant hydroelectric dams on the Snake River in Washington state can be replaced if the dams are breached to save endangered salmon runs. But finding other ways to provide electricity, irrigation and enabling commerce would cost up to $27.2 billion, the report said. (AP Photo/Ted S. Warren, File)