Photo of the Day

Associated Press
In this Feb. 20, 2013 photo, Martin Carlisle, standing, a computer science professor at the Air Force Academy and director of the school's Center for Cyberspace Research, instructs cadets in cyber warfare, at the U.S. Air Force Academy, in Colorado Springs, Colo. The U.S. service academies are ramping up efforts to groom a new breed of cyberspace warriors to confront increasing threats to the nation’s military and civilian computer networks that control everything from electrical power grids to the banking system. (AP Photo/Brennan Linsley)

View gallery

500 photos

View Comments (2)