Photo-historian Michael Lesy takes a hard look at one of the disturbing images that came out of the Middle East last week in this latest, original “Revealing” essay. Concentrating on a photograph taken just days before the assassination of the terrorist group Hamas’ co-founder and “spiritual leader” Sheik Ahmed Yassin, Lesy explores some of the deep background that created such a man, and provides clues to the dangerous riddle, “What did the Dreamer dream?”