I Lieutenant Colonel Philip Snow, Flight Surgeon, USAF, and Test Director of the Aero-Medical Laboratory, was pacing the study floor in his quarters, asking himself for the dozenth time in the past half-hour: What had happened to Richardson during the test that afternoon? He was no stranger to problems. He had been living with them for the past few years, and they had been problems the like of which had never before challenged the ingenuity of man. For he was the head of a small community of men