Canada

 CNN - Canada's two major freight railroads have shut their operations, locking out 9,000 members of the Teamsters union who operate the trains and dealing a potential blow to both the Canadian and US economies. Nearly a third of the freight handled by the two railroads — Canadian National and Canadian Pacific Kansas City Southern — crosses the US-Canadian border, and the shutdown could disrupt operations in several US industries, including agriculture, autos, home building and energy. Today's action is different from a strike, in which union members refuse to report for work. In this case, management is telling the nearly 9,000 Teamsters that they can't work amid the ongoing labor disputes.