Well, I have cracked America’s DaVinci Code, but don’t look for Tom Hanks, to portray me anytime soon. To begin with, I am nobody. I thought I would have been somebody by now, but I am not. I am still Tom Joad, and as much as America loves — The Grapes of Wrath — they always miss the message in the madness: I been thinking about us too, about our people living like pigs and good and rich land layin’ fallow. Or maybe one guy with a million acres and a hundred thousand farmers starvin. And I been wonderin’ if all our folks got together and yelled…