commodity because most of the lumber comes from government-owned land. and the car you drive may have been built in a canadian fay. vehicles make up 3% of the country s exports. it is the legacy of a 1960s agreement that allows american companies to set up plants in canada and ship parts and vehicles across the border. that auto pack became the free trade agreement between canada and the united states which became nafta. more than one quarter of the trade between the united states and canada comes across the ambassador bridge. it links detroit to windsor canada. that doesn t include all of the services that go between these two countries, both canada and the united states are service-oriented countries. joining us now is dominic barton, a global managing