21.   Fifteen first-generation Soviet RBMK reactors, of the sort that blew up at Chernobyl, are still in use in the old Soviet bloc but in need of refurbishing.

22.   The Warsaw Pact -- the old eastern bloc military alliance -- broke up after the collapse of communism in eastern Europe.

23.   Troops of the old communist bloc geared this week to go into action for the first time on US soil.

24.   The food problems come on top of a mounting economic crisis after North Korea lost its former allies in the old communist bloc.