Here's an old dog who can learn new tricks: 80-year-old Rep. John Dingell, who just got an iPod nano and loves it. The most senior House member has an age-appropriate iTunes list he blasts from his iPod: Gilbert and Sullivan show tunes, marches, and Tchaikovsky ballets. The incoming chair of the Energy and Commerce Committee first got hooked when his press secretary, Adam Benson, asked him to record some podcasts. "I told him I thought podcasts were like a 21st-century version of FDR's fireside chats," says Benson. "It wasn't a tough sell."