Stock futures flat as U.S. and Canada appear headed for trade war

JUST IN: US and Canada appear headed for an all-out trade war, with US stock-index futures little changed on Sunday.

The United States and Canada look headed for an all-out trade war, and Wall Street just shrugged.

Stock index futures were basically flat on Sunday night, which tells you something. Two neighbours who trade hundreds of billions of dollars a year across the world's longest border are squaring up, and traders opened their laptops, looked at it, and went back to dinner.

Either the market thinks this is theatre, more noise than tariff, or it's already priced in so much trade drama that one more front doesn't move the needle. You can see the mood at the New York Stock Exchange, calm on the surface. In Ottawa, at Parliament Hill, they'll be reading these headlines rather differently. Cars, energy, lumber, groceries, this is the stuff that crosses that border every single day.

Here's the part that stays with me. Flat futures don't mean no damage. They mean the market hasn't decided who blinks first.

This is Sara White, reporting for HIT.