Show World In Brief Gives Qualified Yes To Summit By ASSOCIATED PRESS WASHINGTON Kennedy said Sunday he would be willing to meet at the Summit with Premier Khrushchev by June 1 if worthwhile progress is made at lower levels in the Geneva disarmament talks starting next WASHINGTON The Army's missile Major General j August said Sunday that there is widespread agree- I ment now that the Nike Zeus I rocket can intercept missile war- I heads in flight The General believes tests to be conducted in the South Pacific later this year will show that the rocket can also discriminate between real warheads and London Britain's Royal Family now has a labor union member in its Princess Anthony Armstrong-Jones also known as Lord Snowdon has been under mild pressure to join a union since starling work as artistic adviser fi the London Sunday Sunday night lie joined the National Union of The Palace had no |