Israeli Holocaust survivor Asher Aud (Sieradski), 86, originally from Poland, shows his number tattooed on his arm by the Nazis at the Auschwitz concentration camp as he poses for a portrait in Jerusalem. Of all the atrocities he endured, Aud said the strongest memory is the one that was most traumatic — parting from his mother at the age of 14.

Sebastian Scheiner / AP

Israeli Holocaust survivor Asher Aud (Sieradski), 86, originally from Poland, shows his number tattooed on his arm by the Nazis at the Auschwitz concentration camp as he poses for a portrait in Jerusalem. Of all the atrocities he endured, Aud said the strongest memory is the one that was most traumatic — parting from his mother at the age of 14.