Berlet, a paralegal, was a vice-president of the National Lawyers Guild. He has served on the advisory board of the Center for Millennial Studies at Boston University, and for over 20 years was on the board of the Defending Dissent Foundation. In 1982, he was a Mencken Awards finalist in the best news story category for "War on Drugs: The Strange Story of Lyndon LaRouche," which was published in "High Times". He served on the advisory board of the Campaign to Defend the Constitution.