If you watch enough “Law & Order” reruns you know that immunity comes up when a defendant is trying to save themselves from prosecution by ratting out a bigger fish or has has a stroke of conscience and wants to make things right (and stay out of jail above all).  That’s when the prosecutor gets that flinty look in his eyes and says that they need to hear what they have to say before they grant it.

Former National Security Adviser Michael Flynn — or his lawyers — must think they have something big to share with the investigators that will save his ass from being prosecuted.

So the questions are 1) who’s the bigger fish, 2) exactly what crimes does he want immunity from?