Hate groups are growing and the number of hate-fueled incidents is spiking in America. How do the events of today compare to other periods of extremism in America? Featured speakers are Heidi Beirich, director of the Southern Poverty Law Center’s Intelligence Project, Jonathan Greenblatt, national director of the Anti-Defamation League, Wajahat Ali, New York Times op-ed contributor, and Matt Thompson, deputy editor of The Atlantic.