Jonathan Greenblatt is the CEO and National Director of the Anti-Defamation League (ADL), an organization originally founded to combat anti-Semitism that today has become a leading civil rights organization against bigotry of all forms. (ADL is also the home of this podcast).  As you'll hear in this interview, in this time of increased extremism, civic organizations like the ADL can do important work in strengthening what he calls “democracy’s immune system”—the democratic values and the institutions, the relationships, that society itself can use to protect the body politic from the disease of extremism.