You’d look so good in these Ray-Bans, and you could capture the envious stares of people who can’t believe how good you’d look. Because these glasses are built through a partnership with Facebook. They allow you to take photos and share video via cameras in the frame. It’s the latest attempt by Silicon Valley to reap bundles of money by using tech to make glasses more than glasses. Google and Snap have also attempted it. We here at “Marketplace Tech” are a camera-shy group, and the prospect of many more cameras makes us nervous. Marketplace’s Jed Kim speaks with Susan Landau, a cybersecurity and policy professor at Tufts University. Landau says there’s a reason we’d be uncomfortable.