Sasha and Malia Obama have avoided the spotlight thus far, but public interest in them is growing. Could there be two luckier tweens in all of America than Malia and Sasha Obama? The Jonas Brothers and Beyoncé sing for them. They get to meet the pope, the queen and Harry Potter. They get personal tours of the Eiffel Tower, the Kremlin, the Sistine Chapel, the Tower of London. They go to the best ice-cream parlor in Rome and make their own gelato. They have visited Yellowstone's Old Faithful and the Grand Canyon, gone whitewater rafting and picked peaches in Colorado....