The Federal Bureau of Investigation (FBI), however, was skeptical and put him under long-term surveillance as a suspected communist, eventually accumulating eight volumes of material on the Rudder family by 1967. Settling in Washington, D.C., John Rudder - a Quaker - and his wife Doris became anti-war and anti-discrimination activists. The FBI caused trouble for their daughter Miriam many years later. As told to Morley Safer on the "60 Minutes" segment "'Sins' of the Fathers ...", which aired on March 1, 1981, she was working as a file clerk for the United States House Select Committee on Assassinations, which was looking into the murders of John F. Kennedy and Martin Luther King Jr. In order for the chairman to obtain the documents he wanted, all committee employees had to get a security clearance. Miriam Rudder claimed she was denied one due to the FBI's suspicions about her parents.