...Bill Darron drove down the alley behind Laura Hillenbrand’s house (with) a Norden bombsight. Since 1987, Hillenbrand has been sick with chronic fatigue syndrome, which has mostly confined her indoors for the last quarter century. When she explained this to Darron, he agreed to bring the Norden from New Jersey on his next visit to Washington. Now, as he made the final calibrations, Hillenbrand returned to the room, and he offered her a brief tutorial. He showed her how to position herself above the monocular eyepiece, guide the cross hairs toward a target on the map, then lock the sight...