Agence France-Presse: Canadian and US environmental groups, as well as citizens, on Wednesday launched a NAFTA complaint alleging Ottawa is not enforcing its own rules by allowing oil sands miners to pollute area waterways. Their submission calls for Ottawa to enforce its fisheries act, which prohibits leaking “deleterious substances” into fish habitats. Failure to enforce environmental regulations, they argue, is equivalent to a subsidy, which is prohibited under the North American Free Trade …