Canada Railways Lock Out Workers as Talks Fail, Snarling Trade BloombergCanada’s 2 major freight railroads at a full stop; government officials scramble The Associated PressCanadian railway work stoppage begins, threatens US supply chains USA TODAYLabor Dispute Halts Rail Freight in Canada, Raising Supply Chain Concerns The New York TimesCanadian railways grind to a halt as workers locked out; economic fallout fears rise CNBC