Virus threatens B.C.’s fragile salmon population

There’s a red flag being waved by conservationists on Canada’s west coast. A diver captured video — and took samples — of what some fish farms are releasing into the ocean. As Paul Johnson reports, there are fears fish farms could infect B.C.’s precious wild salmon stocks.

• Time to end open-water salmon farming, says Pacific Salmon Foundation
• A threat to wild salmon? Government confirms virus in blood discharge pouring into B.C. waters