Green found a small hole in the fence, entered the complex on foot, and started calling for Livingston and Roberts. Nobody replied. It was hard to see anything, with all the smoke and dust. The lenses of his gas mask fogged up. He kept tripping over debris and falling down. He worried that something terrible had happened, that Roberts had fallen into a hole and gotten badly hurt. Green shouted for Livingston and Roberts and realized that he was lost.