Facebook’s Mark Zuckerberg covers his laptop camera – should you?

Over the past few days, the internet’s most tech savvy commenters have been abuzz over a picture that seems to show Facebook founder and CEO Mark Zuckerberg’s computer camera and microphone covered with tape. A keen eyed Twitter user spotted this modification on a photo that Zuckerberg posted to celebrate the growing user base of Instagram (owned by Facebook), and the image has since become viral. But what is all the fuss about, and why should you cover your laptop camera?