Why was the huge but groundless legal assault mounted against Michael Flynn? From the Zman at theburningplatform.com:
Imagine you are out and about and you come upon something that is so incongruous, you can’t help but take note of it. Maybe it is a car parked on the roof of an old barn or a cat chasing a horse around a field. The thing itself is not all that interesting, but its improbability or its incongruousness is what gets your attention. How is it possible that a horse is afraid of a cat? Why would someone put a car on a barn? The strangeness of the possible reasons is what draws your attention.
That’s what is happening with the General Flynn case. Originally, it looked like the same old political shenanigans we always see in Washington. The establishment wants a scalp to parade around so they find a patsy to frame for a minor crime. In the case of Flynn, the inner party needed some red meat for their crazies. Over time, it became clear that the FBI had framed him and the careerists in the system were working to prevent that reality from becoming explicit to the public.
At some point, it was too obvious to everyone to maintain the charade, so the information that was being hidden for three years was made public and the DOJ moved to dismiss the case. The people who conspired to frame Flynn were not being charged and the people who systematically concealed information from the courts for three years were not fired. Instead the whole thing would be made to go away. At some point, Flynn would be paid for his trouble and his silence.