 Hiroshima izahora yibuka igisasu kirimbuzi yarekuriweho umunsi nkuyu Isi iri mu kaga gakomeye - Mikhail Gorbachev Ubudage bwasabye imbabazi Pologne kubera ubugome bwAba-Nazi Woba uzi igitigiri cibigwanisho ruhonyanganda biri kwisi nababitunze? 