I summed up my attitude to this more or less here as quoted from an earlier post: "The reason he lied is a mystery since he clearly didn't need to and had he said yes and then lied after that they couldn't have had him on a crime. I make the assumption then, that the reason he lied was because he was actually guilty of a crime during the meeting and thus foolishly denied it took place. He was slow on his feet. It can also mean that his contempt for himself for his crime was so great that he unconsciously fucked himself. If so he will be better off for it and especially for such a light sentence. Were I his judge, I would sentence him for time just for pulling the 'I was trapped routine". He fucked himself and now wants the best of all worlds.
In shour, I am in on Flynn's guilt and not too happy he may walk. For whatever negative or stupidity on my part you wish to attribute to me for finding interest in Dershowitz's analysis, I find in the abstract the notion that a person, by lying about something the truth of which would make him guilty of nothing, but the lie itself creates criminality, I find a bit disturbing. It will trap people who aren't quick on their feet who are actually lying because they are guilty, but it can also entrap people who feel guilty about just being alive and there are billions of those in my opinion. You are looking at the specific case and I am looking at it from the abstract and the general. I have watch any number of videos on youtube that warn people never ever answer any questions asked by cops. Name, address, serial number, etc.
First off, I don't think you're stupid for at least partially buying in to Dersh's sophistry. It's an argument that close to a 100% of non-lawyers could buy into. Many lawyers would too. I happen to be knowledgeable about materiality in the context of perjury mainly because years ago I researched it in connection with the question of whether Clinton's lying about Lewinsky was "material" in the legal context in which it was given.
While I respect your broader concern, I don't think I've adequately explained why the FBI's actions were proper here and why Flynn's lie was so material. If I had, you wouldn't be holding this case up as an example to illustrate your broader concern.
Recall that in July, 2016 senior Trump people met with a Kremlin connected Russian lawyer in Trump Tower? All participants in that meeting admit that two matters were discussed: 1) repeal of the Magnitsky Act (sanctions), and 2) the fact that the Russians had "dirt" on Clinton. None admit that these two topics were linked by an actual or proposed "quid pro quo" arrangement which would have been a serious crime.
Fast forward to 1/2017, the FBI, who is now investigating whether that very conspiracy may have occurred, hears a tape recording of Flynn promising the Russian ambassador that they will ease up on sanctions once Trump takes office. Naturally, the FBI wants to know if this conversation, which in and of itself and in total isolation is
not criminal, is nonetheless part of an ongoing criminal conspiracy between the Trump camp and the Russian government. They decide that the best way to determine this is to ask Flynn about it and see if he lies. The reasoning is, why would Flynn expose himself to potential perjury charges to deny a conservation which, in and of itself, appears to be sleazy but not criminal? Unless he is lying to cover up a more serious crime, an ongoing conspiracy which started way before the conversation took place.
They reason that if he lies, then they need him to tell them
why he lies. And since he's now perjured himself, they can use that to leverage him to answer that crucial question.
The answer to that question goes right to the heart of their investigation. This is why their tactics were both legal and proper. This was good, professional law enforcement work.