I want to point out the aircraft with the reddish-orange contrail moving at high speed in the first video -- 25 to 32 seconds into the video. The caption says, "It was moving south at a very high speed over Northern California."
This is not the UFO aircraft being discussed. After looking at the video several times, I finally noticed that it says GETTY in the top right corner, meaning that it's stock video from Getty Images. I know that lots of TV journalists do this kind of thing for dramatic effect, but I still find it dishonest and misleading.