NEW YORK (AP) — The former chairman of Dean Foods told jurors at a criminal trial Tuesday that he fed secrets about the company to a professional gambler for over seven years, sometimes speaking in coded language over a prepaid cellular phone called the "bat phone." Prosecutors say Walters encouraged friends including professional golfer Phil Mickelson to buy stock in Dean Foods Co., a Dallas-based company that is one of the nation's largest processors of milk for retailers.