March 20, 2013 Millions of basketball fans will fill out NCAA tournament brackets this week and try to correctly predict the outcomes of every game. The chances of succeeding are about 1 in 150 quintillion. A group of computer scientists are trying to beat those odds by writing programs that learn to pick winners.
March 20, 2013 In the aftermath of the Newtown school shooting, there's a raging public debate over placing armed guards in schools. Some say it's impractical, but about a third of American schools already have some kind of armed security. One school police officer in Stockton, Calif., finds the job is part protector, part mentor.