Previously Unreleased Recordings From Day of JFK Assassination Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Chief Counsel Robert Kennedy, Senator John F. Kennedy, and Senator Karl E. Mundt at the Hearing of the Senate Select Committee to Investigate Improper Activities in Labor-Management Relations, 1957 ( Douglas Jones for LOOK Magazine ) Produced by PRI and WNYC