i was watching your show one night when you had michael milken on. >> larry: about prostate cancer? >> it was only one day before i ever received word. i called you, i received word and within a matter of hours i called you to see if i could get that information on the doctor with his diet and figure out a way to give up smoking. >> larry: dr. gupta, do we know why jim gets it and john doesn't? >> well, that's an interesting question. a lot of people sort of subscribe to the idea that, you know, you may be born with some sort of predisposition, if you will, some likelihood of getting cancer and then something in the environment or something that you have done to your own body in some way may sort of cause the cancer to actually happen. so it could be that, but there's still sort of bewildering questions. we talked a lot for example afternoon peter jennings when he