might I also suggest that sufficiently skilled efforts to direct a conversation will not be detected by most conversation participants.
Keeping away, no. But they are trying hard and mostly succeed to deviate the discussion.
.. and, even more importantly, the censorship cannot be considered successful on the part of the agency doing the censorship unless a) the victim audience do not know the censored information, and b) never know that things were censored.
It would appear that attempted obfuscation over this very issue can be observed in a multitude of forms ...