Europe's Airports Tighten Security in Wake of Raid
Security at European airports is tightened in aftermath of attack by 3 Japanese gumen on May 30 that left 26 persons dead at Lydda Internatl Airport; Italian Min Scalfaro orders tightened rules on June 1 in response to formal request by Israeli Govt; Brit Airline Pilots Assn chmn Capt L Taylor describes attack as 'completely new threat to civil aviation'; illus of Israeli soldier at Lod Airport