In case the cover isn't a dead giveaway, Rolling Stone rapturously endorsed Barack Obama in its latest issue. Although a Rolling Stone endorsement seems pretty inconsequential as endorsements go, it does add a little something more to his "rock star cred," as did the fact that while I was in Rome last week most of the Italians with whom I had a conversation wanted to talk about Oh-Ba-Ma. The last time I was in Europe I was frequently asked about 50 Cent. Times, they are a-changing.