SOVIET SAID TO ASK LISBON FOR A PORT
Portuguese sources say USSR has made urgent request for port facilities in Portugal for Atlantic fishing fleet, which, if granted, would constitute major breach of Atlantic alliance security on approaches to Mediterranean and South Atlantic; Soviet fishing fleets have long been under suspicion by officials from NATO, to which Portugal belongs, for concealing electronic intelligence equipment; suggested site is port of Figueira da Foz, 150 mi north of Lisbon (M)