399010 07: An anti-Taliban fighter digs into a collapsed Al Qaeda cave December 26, 2001 deep in the Tora Bora valley of Afghanistan. The cave was collapsed by American bombings and is about a three hour hike from the nearest roads. The search continues in Tora Bora for Osama bin Laden. (Photo by Chris Hondros/Getty Images)

Military Technology

The military industrial complex has only grown since President Eisenhower told the American people to beware its excesses. Today's machines of war are incredibly complex and powerful. And the businesses that produce them number among the largest and most innovative on the planet. Drones, power suits, and next generation planes are coming -- and not just from the United States.