The point of focus was sixty yards away, four-and-a-half feet above the ground, centered over the wheel ruts of the frozen dirt drive where the drive crested the hill. There was nothing at that point, nothing but the chill, gray December air. The air was held steadily on the tip of a bladed front sight. The blade was couched snugly in a tight U notchthe rear sight of a 1903 Springfield .30-06. Inside the rifles chamber, a small lead ball waited impatiently for a slight contraction of the...