71.   Between the two rail tubes is a third which is used by conventional vehicles for maintenance and emergencies.

72.   The tube is rapidly becoming so important in modern day financing that sports are finding it more and more difficult to retain their independence.

73.   Western experts, however, warn that the reactor is crumbling and that its fuel tubes are worn-out.

74.   Western experts, however, warn that the reactor, of the obsolete and dangerous Soviet RBMK design, is crumbling and its fuel tubes are worn-out.