Not at all applicable in this case. Some federal authorities in the US attempted to halt some 3 million (or 500,000 depending on reports, it seems) purchased shipments destined for Canada from 3M.

It was only the intervention at the highest level of the Canadian government that stopped this.

It's worth pointing out that without Canadian nurses from Windsor who cross the border every day to work in Detroit hospitals, the healthcare system in Detroit wouldn't function.

Or that apparently the pulp used to make the 3M masks comes from softwood from British Columbia.

I'm sure Chrystia Freeland made these points and many others abundantly clear when she got on the phone with the Trump administration.

Which is why Canada keeps losing. Canada loses more than the U.S. does it they stop exporting pulpwood. The U.S. can replace Canadian forestry products easily. Canada can't find a new buyer so easily. Detroit makes up one fifth of one percent of the US population. Windsor nurses aren't going to set national policy for the United States. Chrystia Freeland keeps bargaining from positions of absurd weakness and gets the expected results. Not sure why any Canadian likes her but maybe they care more about the perception of eye poking than actual productive results for the Canadian public.

Having 1/10th the population of the United States, and correspondingly smaller economy, puts us in a weak position no matter what.

I never voted Liberal, never have, but honestly, Freeland is decent.

Trudeau's dad said it best, to Nixon, in 1969:

"Living next to you is in some ways like sleeping with an elephant. No matter how friendly and even-tempered is the beast, if I can call it that, one is affected by every twitch and grunt," said the late Pierre Trudeau.

The N95 masks are made out of plastic, not pulp.

I looked into the pulp claim, and it's true that pulp is used to make some types of lesser surgical masks. But there's no reason to think there is anything all that special about that pulp - it could be sourced from the US too at somewhat higher cost.