CAIRO IS UNEASY; Westerners Ready for Emergency--Signs of Hostility Lacking
Egypt takes over full operation of canal; repts 70 pilots, including 12 foreigners, will remain at jobs, work double schedule to keep canal in operation; Brit Embassy advises 2,000 remaining natls to leave; US Embassy keeps check on 2,200 US citizens; Nasser confs with Amer, Sabry, others; Egyptian fleet continues maneuvers off Alexandria; some observers consider it defensive move to avoid surprise attack