The U.S. congressional memorial volume for Robert F. Kennedy later referenced these reported statements in the context of warnings about extremist ideology and the spread of hate propaganda.<ref>{{cite book |title=Memorial Services in the Congress of the United States and Tributes in Eulogy of Robert Francis Kennedy |publisher=U.S. Government Printing Office |year=1968 |page=248 |url=https://books.google.com/books?id=JTF3AAAAMAAJ&pg=PA248}}</ref> | The U.S. congressional memorial volume for Robert F. Kennedy later referenced these reported statements in the context of warnings about extremist ideology and the spread of hate propaganda.<ref>{{cite book |title=Memorial Services in the Congress of the United States and Tributes in Eulogy of Robert Francis Kennedy |publisher=U.S. Government Printing Office |year=1968 |page=248 |url=https://books.google.com/books?id=JTF3AAAAMAAJ&pg=PA248}}</ref> |