Read Article The arrest of a Portland neo-Nazi last week on child pornography charges provided a stark reminder that white nationalist extremist groups have expanded in the United States, and New England is not immune. But an expert on the National Socialist Club, or NSC-131, said the extremist group that recently established a presence in Maine represents a tiny offshoot in the wider world of white supremacist groups and might count only about two dozen members in New England. A neighborhood poster featured Andrew Hazelton. Matt Byrne/Staff Writer “They formed in early 2020, and are a very small group of folks, kind of outcasts of groups like Patriot Front and other groups that had fallen apart,” said Carla Hill, an associate director at the Center on Extremism for the Anti-Defamation League who tracks the NSC.