Pope Francis's Book Editor Robert Ellsberg on the Pontiff's Life, Legacy & Care for Refugees

We continue our look at the life and legacy of Pope Francis with a focus on his advocacy for migrants' rights and next steps for selecting his successor, with input from groups like SNAP, Survivors Network of those Abused by Priests. It was clear that the subject of migrants and immigrants wasn't just one topic among many that he addressed, as all popes might," says Robert Ellsberg, editor of Pope Francis's book on migrants and refugees. It really was a kind of signature of his papacy."