Highlights: Khrushchev attacks Eisenhower'doubts, Eisenhower visits Russia, claims it would be mad to greet him in Russia due to U-2 incident, Eisenhower defends U-2 missions over Russia to avoid new Pearl Harbors, the swiss order two Russian diplomats to leave Switzerland due to spying, Senator Kennedy presidential chances increase due to West Virginia primary win, Senator Kennedy talks about the opposition and primary success, says he will be nominated by the Democratic party as their presidential candidate. John David Rockefeller Jr. dies at 86.