I don’t know about the whole country, because there’s a lot of low-density space where it’s hard to justify this level of infrastructure cost.

But the Quebec City-Windsor corridor absolutely needs high-speed rail because it includes roughly half of Canada’s population. It’s even conveniently arranged in a straight line! Driving in this region is hindered by tons of traffic, and flying has huge carbon costs. Rail should be the default way to get around in this region.

That’s not at all what the article is saying.

Under the current terms of NORAD, the U.S. and Canada can operate in one another’s airspace to track or intercept threats.

Ambassador Pete Hoekstra cautioned that if Canada purchased fewer fighter jets, the U.S. would “fill those gaps” in security concerns.

“NORAD would have to be altered,” Hoekstra told CBC News.

One can read threats into that, but it’s quite far from threats of bombing.