 Sociologists who were investigated by the FBI for their political beliefs during this period include Ernest Burgess, William Fielding Ogburn, Robert Staughton Lynd, Helen Lynd, E. Franklin Frazier, Pitirim A. Sorokin, Talcott Parsons, Herbert Blumer, Samuel Stouffer, C. Wright Mills, and Edwin H. Sutherland.Although government employees and entertainment figures were most often investigated for alleged communist sympathies during the "Second Red Scare" of the 1950s, many university faculty were accused as well.In their 1955 study of 2,451 social scientists who taught at American colleges and universities, Lazarsfeld and Thielens noted that the period of 1945–55 was especially marked by suspicion and attacks on colleges for the political views of their faculty.