"Last year, members of the Nationalist Social Club / NSC 131, which is described as a neo-Nazi group by both the Counter Extremism Project and the Anti-Defamation League (ADL), hung a banner that read 'Keep Boston Irish' along the South Boston St. Patrick's Day Parade's route."

"The NSC is a loose network of small chapters acting under their own rules, according to the Counter Extremism Project, a non-partisan international policy group that combats extremist threats. NSC is also known as NSC-131; the 131 is alphanumeric code for a-c-a, or anti-communist action, according to the Counter Extremism Project."

"Members of NSC-131, identified as a white supremacist group by both the the Counter Extremism Project and the Anti-Defamation League (ADL), unfurled a banner along last year’s parade route that read, 'Keep Boston Irish.'"