 Profeseri Christopher Murray wo kuri Kaminuza ya Washington, yabwiye BBC ati: Tugeze mu cyiciro aho kimwe cya kabiri cyibihugu bifite uburumbuke buri ku kigero kiri hasi yikigero cyo gusimbuza, rero niba nta gikozwe abaturage bazagabanuka muri ibyo bihugu. 