Inspector General, a military officer who inquires into and reports on all matters affecting efficiency, economy, and discipline within his branch of the armed forces. The U.S. Army, Navy, Marine Corps, and Air Force each has an inspector general who reports to the secretary and chief of staff of his branch. Members of each IG's staff are assigned to major units. The inspector general of the Air Force has additional powers, including the direction of air force security policy and the counterintelligence program.
Nations are facing a more guerilla-style warfare – even at sea, and the equipment must evolve to meet new demands. Enter the Sea Fighter. Learn about this experimental, high-speed, "invisible" ship.
This week, U.S. officials said they dispatched scientists in December to search for dirty bombs in five U.S. cities, after learning of possible New Year's Eve terrorist attacks. Learn all about these crude weapons.