The bomb that landed in the yard didn’t contain a core. But the high explosives went off when the weapon hit the ground, digging a crater about fifty feet wide and thirty-five feet deep. The blast wave and flying debris knocked the doors off the Gregg house, blew out the windows, collapsed the roof, riddled the walls with holes, destroyed the new Chevrolet parked in the driveway, killed half a dozen chickens, and sent the family to the hospital with minor injuries.