By 1936 the FBI had begun to target the personal and political activities of U.S. citizens considered to be subversive, including some dancers. Sophie Maslow had her appearance on national television cancelled, and her brother was fired from a government plant. Pearl Primus and Anna Sokolow had their passports confiscated. Jane Dudley was followed by the FBI, and her husband Leo Hurwitz (1901–1991), an award winning documentary filmmaker, was blacklisted.