Do you think there's more likely to be a "Reverse Bradley Effect" in this election?

Where voters will pretend that they'll be voting for McCain in their communities because they're too scared to say they're voting for Obama for fear of being hared and retaliated against (e.g. vandalism, intimidation, being called "traitor," etc.)? There's many cities in America that are like that (people being chased off the road for having a pro-Obama sticker on their car, etc.).