Canada's counter-tariffs take effect as trade war with US heats up

Canada's retaliatory tariffs on billions of dollars in US products took effect Tuesday, as a trade war between the North American neighbors heats up. On Monday, Trump had threatened to block sales of Canada's Bombardier Aviation in the United States, unless the Quebec-based plane maker moves manufacturing to the US.

Canada's retaliatory tariffs on billions of dollars in US products took effect Tuesday, as a trade war between the North American neighbors heats up. On Monday, Trump had threatened to block sales of Canada's Bombardier Aviation in the United States, unless the Quebec-based plane maker moves manufacturing to the US.