One girl wants to play against men in the most competitive golf tournament in the world. She's that good. A boy genius wants to cure diseases, bring peace to the world and design space stations. Don't bet against him. A boy who could be the next Beethoven has already composed more than half the number of symphonies the great composer wrote. A Beethoven symphony took months or years to write; this boy wrote one in a few hours. They're all under 15 and among the most remarkable and gifted children 60 MINUTES has ever encountered.