The reality IMHO? It will be with just cause, aimed at "high-probability" suspects that need to be monitored for the time being. Can't add a specific "Anti-Islamic Fanatic" law out of thin air now, can we? The duration of this "mandate's" duration is capped.
The only other way to handle the infestation of domestic US/Canada in-camp Islamic fanatics is to deport them, but it ain't gonna happen.