I think it would be useful if news outlets signed their video content using watermarking techniques. Then social media sites where news is shared could automati

I think it would be useful if news outlets signed their video content using watermarking techniques. Then social media sites where news is shared could automatically check for recognised signatures for major outlets and give it a checkmark or something. The signature could be easily removed but video without the checkmark would then be suspicious. It would also be useful if they added signed timecodes to frames so it could be checked if the video has been edited.