^* Brad Parkinson’s air force career was deeply involved in the “automated battlefield” idea, with a special interest in the formidably armed AC-130 aircraft, which has a reputation for being the “terminator,” the ne plus ultra of fixed-wing gunships. Parkinson’s association with GPS derives mainly from a legendary meeting, the so-called Lonely Halls Meeting, held in an otherwise near-deserted Pentagon over the Labor Day weekend of 1973, when the outlines of the GPS architecture were discussed by a handpicked group of air force officers. Parkinson saw the importance of GPS as allowing aircraft “to drop five bombs in the same hole.” Roger Easton, by contrast, liked to think of his work as the poetic continuation of John Harrison’s timekeeping obsession of two centuries before, though linking time and space with modern technology.