Nova Scotia Information and Privacy Commissioner Tricia Ralph called for future vaccine passports to have proper privacy protections in place, CBC News reports. Ralph called for a privacy impact assessment to take place in a letter to the provincial government. "They can be a valuable tool for Canadians, but my concern is they be done the right way," said Ralph. "My concern is they be developed in a way that would not collect too much information or disclose too much information than is really necessary."