Acts of defamation against controllers have been seen
Now ask why there seems to be a deliberate policy of antagonistic claims against ATC's. Beginning with this claim of "renegade controllers" months ago. If renegades existed prior to now, surely they would have been identified and dismissed?
Maybe if TFN claims there are renegade controllers often enough, and continues with the heavy handed approach to staff terms & conditions, he may just succeed in creating some.
But why would TFN need renegades?