The majority of people who are fully immunized are likely to tell you their vaccination status. But for those who can't or won't take the shot, it's a different story. The promise to look into a Vaccine Passport by Liberal leader Iain Rankin has moved the topic from public health into the political world. And for Bioethisist and Dalhousie Professor Francoise Baylis, there are compelling reasons to have tough conversations before moving ahead with this plan.