Mark Zuckerberg doesn't really believe in privacy for the rest of the world, so it's not much of a surprise that the world doesn't believe in privacy for Zuckerberg. The Facebook founder and new bride Priscilla Chan are honeymooning in Italy, and details of their trip are being tweeted by all sorts of people who run across the power couple. Among the samples collected by Buzzfeed: "Just met Mark Zuckerberg inside the Colosseum. He's on honeymoon in Rome. :-)," tweeted Marco Pontuali. Click to see a photo of the honeymooning pair.