To the devout secularist, there is something offensive about commemorating an ancient defeat, as we do on Tisha Be'av. Interior Minister Avraham Poraz openly berated the idea of remembering the destruction of the Temple. It's old, it's sad, it's negative why keep doing it? Commemorating defeat may seem strange, but it is hardly unique. The Crucifixion is obviously central to Christianity, and Shi'ite Muslims flail themselves to mourn the death in battle of Ali, the grandson of Muhammad, whom they believe to be his rightful heir. Yet what is striking about Tisha Be'av is that it is about a defeat,...