Facebook began testing its Periscope-like Live Video feature back in December. Only celebs and verified pages could get in on the livestreaming action, though, but that's about to change. The social network is rolling out the feature to iPhone users in the US starting today, with a wider release "to the rest of the world" in the weeks to come. To get started, all you have to do is select Update Status and tap on on the Live Video icon. You'll then be able to select your audience and enter a short description before your broadcast begins.