MixedThe Wall Street JournalMr. Milner is a brisk and funny guide to the bureaucratic and technological infighting in the U.S. military, which created GPS over the course of several decades beginning in the immediate aftermath of the 1957 launch of Sputnik ... Mr. Milner is a mostly competent guide through GPS’s technical intricacies. But he is strongest at taking the reader through its commercial and scientific applications ... Mr. Milner falls short, however, in answering the most difficult, and most interesting, of the questions he raises, which is what GPS is doing to our minds.
