At the 2008 summer Olympic Games in Beijing, the New York Times columnist Tom Friedman observed something intriguing about the powerful American team, which won the overall medal count for the games. After wandering through the athletes’ village, he noted, “The Russian team all looks Russian; the African teams all look African; the Chinese team all looks Chinese; and the American team looks like all of them.” The United States, Friedman said, is the clearest example of a nation whose “strength comes from diversity.” The most powerful nations in history have all followed a similar formula. In “Day of Empire,” […]

At the end of May, the Senate confirmed Army Gen. Keith Alexander as commander of U.S. Cyber Command. The command’s creation had already been controversial, and as a result, the Senate Armed Services Committee delayed Alexander’s confirmation due to questions over roles and missions, authorities and restrictions. After his confirmation, Alexander specified that the new command is responsible for directing the day-to-day operations and defense of Department of Defense information networks, as well as for the “planning, integration, and synchronization of cyber activities, and when directed . . . for conducting full-spectrum military cyberspace operation[s]” to ensure freedom of action […]