When we last wrote about the Federal Bureau of Investigation file for former head of the American Civil Liberties Union Roger Baldwin, we looked at one of many instances in which Baldwin butted up against Director J. Edgar Hoover on the issue of balancing liberty and security. An earlier section of the file, however, reveals their relationship was relatively tame compared to that of Hoover’s predecessor, who once urged radio stations not to let the “ultra-radicals” at the ACLU broadcast the “rotten propaganda” that they weren’t on the Soviet payroll.

The recently released Federal Bureau of Investigation file for former head of the American Civil Liberties Union Roger Baldwin document numerous times the groups came into conflict with each other. One notable incident, related to the Bureau’s wartime “Postal Censorship” program, led to a testy exchange between Baldwin and FBI Director J. Edgar Hoover after the Bureau investigated the writer and pioneering Libertarian Rose Wilder Lane over her comments on a postcard.