President Obama's words upset all Poles - Tusk

US President Barack Obama's words of "Polish death camps" offended all Poles, Prime Minister Donald Tusk said on Wednesday. We cannot accept such words, even if they are spoken by the head of a friendly superpower, Tusk added. "Yesterday's US President Barack Obama's words of Polish death camps upset all Poles," he said. "We always react in the same way whenever ignorance, lack of knowledge or malice lead to such distortions of history - which are particularly painful for us, here in Poland, in a country that suffered as no other in Europe during WW2," Tusk said.