Video games used to be for kids and geeks. Today just try to find someone who doesn't play at least one electronic game. Electronic games began as entertainment, but they're fast becoming much, much more. Already we use games to teach kids and to train doctors, to meet friends and to wage war. Today how games could transform the world. British writer and game theorist Tom Chatfield is the author of "Fun, Inc: Why Gaming Will Dominate the 21st Century." He tells Jim Fleming he believes games also have the potential to revolutionize a field that could use a dose of fun: education.