For years, the federal government has struggled to find a way to operate the massive hydropower system on the Columbia and Snake rivers in the Pacific Northwest--and also try to recover the endangered salmon that are all-too-frequently slaughtered at the massive dams as they make their way up and down the river.

One option for saving the fish has never really been on the table: breaching the four dams on the lower Snake River that stand between the salmon and millions of acres of pristine habitat in central Idaho and northeastern Oregon.

President George W. Bush made it clear it would never be an option on his watch. The dams, after all, are generating enough electricity to power Seattle, and provide Lewiston, Idaho, with a port for barging valuable cargoes of grain 140 miles down the river.

But it's a new watch. And a federal judge in Oregon has signaled that breaching the Snake River dams needs to be considered, at least as a contingency plan, if other options for bringing back salmon fail to do the job.

In a letter to parties in the long-running litigation, U.S. District Judge James A. Redden made it clear he is ready to find substantial shortcomings in the biological opinion for salmon recovery laid out by the Bush administration last year.

"Federal defendants have spent the better part of the last decade treading water, and avoiding their obligations under the Endangered Species Act. Only recently have they begun to commit the kind of financial and political capital necessary to save these threatened and endangered species, some of which are on the brink of extinction. We simply cannot afford to waste another decade," the judge wrote.