With Canada’s vaccine supply appearing to have stabilized, at least for now, the latest point of pandemic-related friction between the federal and provincial governments seems to be cross-border traffic — specifically, the “non-essential travel” that at least one premier is openly blaming for the current third wave of infections. As the Star’s Susan Delacourt reports, Intergovernmental Affairs Minister Dominic LeBlanc “fired off a letter to Ontario this weekend, asking (Premier) Doug Ford and his cabinet to identify which international travellers they want banned from entering t...