Michael Kimmel, professor of sociology and gender studies at Stony Brook University, where he directs the Center for the Study of Men and Masculinities and the author of Healing from Hate: How Young Men Get Into ― and Out of ― Violent Extremism (University of California Press, 2018), draws on his research with former members of violent hate groups and explores the way the stereotypes of masculinity are used to recruit and retain young men in groups, like the skinheads, neo-Nazis and other white nationalists.