Bogumila recalls how as a small girl growing up in the Polish town of Oswiecim she saw prisoners beaten by Nazi guards and watched with her mother the distant glow of the crematorium fires of the Auschwitz concentration camp.
"Everyone sat in their homes in silence, windows shut as tightly as possible," she said.
The 70th anniversary of the liberation of Auschwitz, to be attended by world leaders and survivors, raises painful questions for residents of Oswiecim where Nazi occupiers created one of the most relentless extermination machines in human history, claiming the lives of an estimated 1.5 million people.