1. Grenell should by now have in his possession every instance where Flynn's communications were intercepted and/or recorded and transcribed and when his name was unmasked, and who ordered it.
2. I have read where it seems that there are instances where Flynn's name was NOT masked in intercepted/transcribed communications. Now if that is true, it is a clear violation of Executive Order 12333.
3. But suppose that the interception of Flynn's communications was outsourced to a foreign nation. If that happened, I hope Grenell raises hell with the agencies involved (if he hasn't already) and demands to know when these intercepts occurred, and who ordered it, and who shared it. And then, I hope he forwards that information to Congress also.
All that being said, it appears that Grenell is on top of this treachery and is shaking it like a pit bull with a garbage pail doll.