Fox News journalist Geraldo Rivera generated less-than-positive response in the Twitterverse Sunday after tweeting a seminude photo of himself draped only in a low-hanging towel. "70 is the new 50," posted Rivera, whose birthday was on July 4. "Erica and family are going to be so ---- . . . but at my age . . . ," he added, referring to fifth wife Erica Michelle Levy and his five children from various spouses. Among the critics was chef Anthony Bourdain, who quipped, in reference to a similar infamous tweet by Anthony Weiner, "Geraldo throws his hat into the New York mayoral race."