Ireland is a small country where, according to legend, everyone knows everyone else. But I might never have met the late, great Tomi Reichental, Belsen survivor and a resident of Dublin for more than 60 years, were it not for a random chain of events that began in Kenya in 1992.The catalyst was the funeral of a German expatriate named Arnold Hopf, who had once spent several months in Buchenwald concentration camp before escaping and starting a new life in Africa, working with the British colonial service and marrying a Kenyan native.She was Catholic, so when Arnold (who was not...