Very valuable contributions.

One thing that your comment reminds me of is this question - what's the difference between a wrecker and someone who is messy? The only difference is intention. And what use are intentions to we who are materialists anyway? A wrecker is as a wrecker does,

Just a word of caution. It's also poor form to just go accusing people of being a fed or a wrecker without solid evidence because that can cause a lot of damage too. If you have suspicions, observe and be patient. Keep track. Keep a journal if you need to. You have been wrong before and you will be wrong again, so don't go cashing in all your credibility on an overblown hunch and don't go causing unnecessary disruption in an org just because you started seeing things that weren't really there.

Raise your concerns with a trusted member of leadership. Make sure that you make a time to talk privately. Give them clear, concise feedback and observations from what you have seen or heard and not from how you have interpreted things. The unfortunate reality is that if you get rid of one infiltrator/infiltrator ring then they'll probably send the next one in soon after, especially if we're talking feds and an org that has attracted their attention. Sometimes it's better to see where the knife will come from than it is to allow yourself to be stabbed in the back. Don't gossip. Don't spread rumours. Trust in your org's leadership and if you have serious concerns about them failing to act appropriately, raise these concerns directly with your leadership. They may have something in the works. Don't go fucking up their long-term strategy all because you decided to play detective one day and you wanted to blow the lid off the whole thing.