I watched the Flinstones as a kid but don't remember the song. It is pretty awesome and that would never be put into a cartoon today.
I gotta believe that there are still very many within all agencies that are not thrilled with President Trump. Their future plans and situations have all changed. Cleaning house at the top was obviously the first step but there are many lower levels to be cleaned as well. It makes sense that factions still exist within the DOJ & FBI that are working against the President.