"Genius" is a word that gets tossed around a lot these days. Author Walter Isaacson, who has written bestselling biographies of Leonardo da Vinci, Albert Einstein, Benjamin Franklin and Steve Jobs, says smart people are a dime a dozen, but being a genius means you must be creative, imaginative, and possess uncontainable curiosity. Mo Rocca talks with Isaacson, and with three individuals who might fit the bill: Internet pioneer Vint Cerf, biochemist Jennifer Doudna, and musician Wynton Marsalis.
