Michael "Sonny" Trimble stands in the middle of an Iraqi desert, inches from the razor-sharp blade of an 80,000-pound track-hoe. His nose practically grazes the earth as Wade Ricard, the machine operator, scrapes away the sun-roasted dirt with the touch of a microsurgeon, centimeter by centimeter. The pair has been digging for a week and has not yet detected any change in the soil color: the subtle sign that... More >>>