U.S. NOW TO TURN PRESSURE ON CUBA; Sees Concession to Soviet Necessary While Castro Is Held in Check End of Blockade Seen U.S. NOW TO TURN PRESSURE ON CUBA Letters Exchanged
US and USSR reptd split over IRC plans to handle at-sea inspection; Thant efforts to arrange procedures discussed; Kennedy seen ready, if USSR withdraws bombers, to acknowledge its good faith in removing offensive weapons and to turn to dealing with Cuba to restrain Castro; secret exch of lrs between Kennedy and Khrushchev reptdly continues; speculation
