Backlash,
The Corps loads both hatchery and wild fish into the barges at Lower Granite. I think the pig thing is a great idea. Problem now is that so many OSU grad students are running around there now the pigs'll probably spend all of thier time raiding lunch boxes rather than nests!
You can buy out the commercials, send the navy after the foreign fleet, beat your head against the wall trying to get the natives to change harvest tactics, but -- again -- the single way to affect the most recovery is to bring those dams down.
If we tried other methods of recovery, evaluated their effectiveness, how many more years down the road to extinction would put us?