Germany, the most racist of countries less than a century ago, has for the past two years welcomed over one million refugees, more than any other European country. To find out the secret behind this turn of character, Tuvia Tenenbom, a Jew born in Israel, presented himself as a Jordanian and was able to gain entry into many refugee camps. Living in squalid conditions in airless rooms, and with barely edible food, the refugees begged Tuvia to help them get out of the camps. When not with the refugees, Tuvia traveled through the land and mingled with the local people who shared with him that...