One minute, the white Mercedes-Benz sat parked in the working-class neighborhood of Ain Rummaneh in Christian East Beirut. The next, 330 lbs. of explosives hidden inside the vehicle went off in a mighty roar, totally demolishing the car and setting seven nearby apartment buildings ablaze. Thirty-two died and 140 were injured in the blast.
Little more than a day later, on a busy street in the Barbir area of Muslim- dominated West Beirut, a gray Volkswagen containing 165 lbs. of explosives blew up in another deafening blast. The force devastated a shopping center of 20 boutiques, set fire to dozens of...