Intelligence-gathering agencies face many challenges in the twenty-first century, including how to employ advanced technology. For example, some authorities argue that the United States should move from manned spy aircraft to unmanned satellite intelligence in order to prevent the kind of catastrophe that occurred near China in 2001. In April of that year, a Chinese pilot forced down an American EP-3, a propeller-driven reconnaissance aircraft. Unlike the U-2, used for reconnaissance during the Cold War, the EP-3 does not fly over hostile territory but collects communications and other signals intelligence from the edges of hostile nations. Unfortunately, these slower, low-flying intelligence- gathering aircraft are easy targets for antiaircraft missiles and fighter planes. According to journalist James Hackett, “The vulnerability of the planes and the possibility of their crews becoming hostages is an incentive...