SOUTH PLAINFIELD, New Jersey (WABC) -- A Labor Day parade in New Jersey had some unwanted visitors, a small group of known white supremacists, who attempted to crash the celebration. The South Plainfield Labor Day Parade made its triumphant comeback Monday after four years. Considered the largest of its kind in the state, the celebration attracted the New Jersey European Heritage Organization, classified by the Anti-Defamation League as a hate group. "We have to let groups like that know they're not welcome here," said Daryle Lamont Jenkins, Executive Director of One People's Project. They were unwelcome, but they were there....