The Defense Department is considering establishing a standing, mobile air defense system to secure domestic air space over high-profile events, including gatherings of heads of state, political conventions and even major sporting events. Adm. Timothy Keating, commander of U.S. Northern Command and U.S. North American Aerospace Defense Command, is weighing whether a requirement for such a domestic air defense organization exists, according to Pentagon officials. Last year, the U.S. military assembled air defense packages on an ad hoc basis to...
