Are Obama-Free Car Bumpers a Sign of Racism?

Re Jacob Weisberg's piece saying that racism is the only thing that is keeping Obama's lead so low, I just drove about 500 miles in the last few days thru this great land of ours, blue states only, and I saw barely any Obama stickers apart from the one on my car's hinder. I think I saw 4 or 5 all told. At this time in '04 I seem to remember plenty of Kerry Edwards stickers. I still see them. Now, yes, I saw Obama lawn signs in bourgeois Martha's Vineyard and Woods Hole, but on the road I say people are loath to advertise their love of Obama. It's young people and old lefties like me who are gaga for Barack, while a lot of older people are a little afraid to suffer the potential social consequences of being obviously enraptured with a black man. Just a theory. I still say it's a landslide. I don't think I saw one McCain sticker. Now those people are really crazy.