I was going to point to this too. I haven’t seen a direct metric, but the data is there if someone wants to pull it out.
Heck, with video cameras going they could even generate an “engagement score” based on how much time a participant’s eyes are on the screen versus elsewhere. They don’t so far as I know, but again the data is there if they wanted to.
Ditto. I would be more surprised if there was somehow conclusive evidence the FBI had nothing to do with MLKs murder.