NORAD's current shortcomings affect three areas.
Those are lack of munitions, lack of platforms, lack of infrastructure and aging sensors. A lot of work has been done in NORAD with regard to improving the sensors so that they can actually detect some of the current threats. It's not perfect. There are vulnerabilities.
Many of the munitions that the United States and Canada have purchased over the last 20 years have been in what I call “boutique lots”. If we found ourselves in an aerial campaign similar to what is currently being conducted over Ukraine and Russia, we would run out of munitions very quickly.
As I've said before, the CF-18 may be an excellent platform, and the F-35 could be a great aircraft, but as Stalin noted, “Quantity has a quality all its own.” No matter how good your platform is, the same platform can't be in two or three places at the same time.