sentences:  As prisoners entered the death camps, they surrendered all personal property, which was catalogued and tagged before being sent to Germany for reuse or recycling.Through a concealed account, the German National Bank helped launder valuables stolen from the victims.Dan Stone writes that since the opening of archives following the fall of former communist states in Eastern Europe, it has become increasingly clear that the Holocaust was a pan-European phenomenon, a series of "Holocausts" impossible to conduct without the help of local collaborators.