Aug. 9, 1961 - Attorney General Robert F. Kennedy has informed Republican Senator Kenneth B. Keating of New York that he opposes branding the American Nazi party as a subversive group because it would give the Nazis free publicity. Mr. Kennedy said in a letter to Sen. Keating that the Justice Department and "all sensible Americans" despised the Nazi doctrines. The party is being watched closely, he said. But Mr. Kennedy said that steps to place the Nazis on the Justice Department's list of subversive organizations would give George Lincoln Rockwell, the party's leader, a public forum to spread his "obnoxious doctrines." Mr. Kennedy said the practical way to deal with Rockwell and his followers was for local authorities to prosecute them when they violated the law.