http://www.workers.org/2011/us/stop_fbi_repression_0224/

Here is what the article says about the father and son: “Masao Suzuki, a Skyline College professor who was himself visited by the FBI recently, recalled how, when his mother and father, who had been U.S. delegates to a 1952 Pacific Rim Peace Conference in Beijing, reported on that conference in the very same Humanist Hall in Oakland [in 1953], two FBI agents in business suits ostentatiously stood at the back of the hall making notes.”