His son , Daniel Levy , was active in Israeli political life .
His son , Daniel Levy , has served as an assistant to the former Israeli Prime Minister Ehud Barak and to Knesset member Yossi Beilin .
His son , Daniel Levy , was active in Israeli political life , and has served as an assistant to the former Israeli Prime Minister Ehud Barak and to Knesset member Yossi Beilin .