NOAA statement on today's broadcast of the SpaceX Iridium-5 launch
The National and Commercial Space Program Act requires a commercial remote sensing license for companies having the capacity to take an image of Earth while on orbit.
Now that launch companies are putting video cameras on stage 2 rockets that reach an on-orbit status, all such launches will be held to the requirements of the law and its conditions.
SpaceX applied and received a license from NOAA that included conditions on their capability to live-stream from space. Conditions on Earth imaging to protect national security are common to all licenses for launches with on-orbit capabilities.