The Hollywood blacklist began to be mentioned in history books in the 1980s.
In October 1947, drawing upon the list named in The Hollywood Reporter, the House Un-American Activities Committee subpoenaed a number of persons working in the Hollywood film industry to testify at hearings
 A few of those named, such as Hellman, were already being denied employment in the motion picture, TV, and radio fields; the publication of Red Channels meant that scores more were placed on the blacklist

