British Columbia has the fourth largest aquaculture industry in the world. But some First Nations people in the region say the farms are killing off the wild salmon that form the foundation of a two billion dollar tourism and commercial fishing industry  ? and they're taking their complaints to court. Host Bruce Gellerman speaks with Chief Bob Chamberlin, who is representing over 4,000 native peoples in a class action lawsuit, and Alexandra Morton, a scientist who has been studying the salmon stocks in the region for years.