This week on Matter of Fact, we look at what it means to be an American. We follow a naturalized immigrant judge as she swears in new citizens in Milwaukee. Then, Special Contributor Joie takes us inside a controversial vaccine shortcut known as “Human Challenge Trials.” Plus, Correspondent Jessica Gomez shows us a Detroit boxing gym has become an unlikely source of community support during the pandemic. And, a conversation with Supreme Court Justice Sonia Sotomayor about the state of civics.