John Foster " Chip " Berlet ( ; born November 22 , 1949 ) is an American investigative journalist , research analyst , photojournalist , scholar , and activist specializing in the study of extreme right-wing movements in the United States . He also studies the spread of conspiracy theories . Since the 1995 Oklahoma City bombing , Berlet has often appeared in the media to discuss extremist news stories . He was a senior analyst at Political Research Associates ( PRA ) , a non-profit group that tracks right-wing networks
Oklahoma City bombing
Oklahoma City bombing
Chip Berlet