When white supremacist Wade Michael Page murdered six people and wounded four in a Sikh Temple in Wisconsin in 2012, Pardeep Kaleka was devastated. The temple leader, now dead, was his father. His family, who had immigrated to the U.S. from India when Pardeep was young, had done everything right. Why was this happening to him? Meanwhile, Arno Michaelis, a former skinhead and founder of one of the largest racist skinhead organizations in the world,...