Children of the HolocaustBy: Helen Epstein "I set out to find a group of people who, like me, were possessed by a history they had never lived."The daughter of Holocaust survivors, Helen Epstein traveled from America to Europe to Israel, searching for one vital thin in common: their parent's persecution by the Nazis. She found: Gabriela Korda, who was raised by her parents as a German Protestant in South America; Albert Singerman, who fought in the jungles of Vietnam to prove