[Stoat]

You will get no arguments from me. As is stated in the video, these spikes could easily cause someone's death.

Hopefully, since the U.S. Forest Service has labeled this as eco-terror, perhaps this will now automatically come under the purview of the FBI or Homeland Security.

[Nuzcruizer]

These lunatics aren't "protecting" nature or fish in any way, as if fish need 'protection' in the first place. Rafting is environmentally friendly. What about a grizzly bear and her cubs who come to do a little fishing themselves on these rivers and step on one of these spikes, driving it through their paw? They would die a slow death from infection, and probably turn to easier prey in their wounded condition. Ironically, it would probably be an eco-terrorist sneaking around the bush.