Such would seem to be the refrain of the anti-mining environmental crowd, whose most recent demonic spawn appeared as the "Give Fish a Chance Act," which has apparently succumbed to saner heads -- at least for now.
Lest anyone think there might be some shred of truth to the mantra that dredging causes serious harm to fish populations, please consider this recent item in The Spokesman Review for February 23, 2014:
The story opens with the following facts:
State, federal and tribal fish managers expect 1.6 million fall chinook salmon to head for the mouth of the Columbia this summer. That’s a 26 percent increase from the 1.26 million record run in 2013 that allowed anglers to set harvest records from the lower river through the Hanford Reach.
The article, which can be accessed at the link in the title above, is well worth reading in full.
As to whether this news will dampen the ardor of the environmental-crazies crowd, I'm not holding my breath.