Instagram has rolled out live video functionality to all of its users. Users can access the live camera from within the Stories section of their app, and followers will see a "live" badge for whomever is currently broadcasting.
Unlike Facebook or Periscope, however, a live video is not saved once the broadcast has concluded.
Explains The Verge, "Instagram says it does this 'so you can feel comfortable sharing what you want, anytime.'" Read more here.