Will COVID vaccines reopen the world?

The dream of free movement is starting to seem more real, with COVID-19 vaccines being rolled out around the world. Margaret Keenan was the first person to receive an officially approved Pfizer-BioNTech vaccine, when she got the jab in a hospital in the middle of England two weeks ago. Since then, thousands more have followed in the UK and US, while millions more have had other COVID-19 vaccines in China and Russia. But not all COVID-19 jabs are the same, so how will a vaccinated world work? And what happens to you if you haven't had the jab, or can’t get access to it? Featured: Dr Alexandra Phelan, Assistant Professor, Georgetown University Center for Global Health Science and Security, and Adjunct Professor, Georgetown University Law Center