August was a bloody month. On Aug. 5, a suicide bomber destroyed the front of Jakarta’s J.W. Marriott hotel, killing 12 people. Many more died on Aug. 29 in a blast outside the Imam Ali mosque in Najaf, Iraq. Between these explosions, deadly bombings filled the calendar: UN headquarters in Baghdad, a bus in Jerusalem, two blasts in Bombay. And these were but the latest in a chronology of carnage running back in time from Casablanca through Riyadh and Bali to Manhattan’s crumbling towers.