Radio host Don Imus took a break from talking politics and sports this morning to reveal that he has Stage 2 prostate cancer. "The day you find out is fine," the 68-year-old said. "But the next morning when you get up, your knees are shaking. I didn't think I could make it to work." Imus, who was booted from his MSNBC morning gig in 2007 for racist comments, said stress may have been a cause. He and his wife run the Imus Cattle Ranch for Kids with Cancer.