Canadian Prime Minister Justin Trudeau vowed last week to keep up the fight against the never-ending effort in the United States to slap countervailing duties on Canadian softwood-lumber exports.  In an interview on Vancouver-based RED FM, Trudeau cheered the World Trade Organization for ruling last week in Canada's favour, touted the federal government's investments on behalf of forestry operators in B.C. and assailed the U.S. government for persistently trying to punish a Canadian industry it believes is unfairly subsidized.  “Canada is doing the right things and the United States ...