Hate speech

Growing up as a member of the Westboro Baptist Church, Megan Phelps-Roper was taught that God hated gay people. The church, which was founded by Phelps-Roper's grandfather, Fred Phelps Sr., became infamous for picketing the funerals of U.S. soldiers — whose deaths it believed were a punishment for America's sins and its tolerance of homosexuality.

As the son of a grand wizard of the Ku Klux Klan, Derek Black was once the heir apparent of the white nationalist movement.

A.C. Thompson warns that white power groups in the U.S. increasingly view themselves as paramilitary organizations. His reporting is featured in a new FRONTLINE and ProPublica investigation.