So, Pravda on the Checkout Line is pushing the story that Flynn was a Russian spy. While traditionally, nothing resembling the truth can ever come out of that place, for the past several months, people have had some success applying the principles of Kremlinology to the tabloid. i.e. you don’t ever learn the truth per se, but you learn who’s in, who’s out (as in out of favor, not necessarily out of a job), and who’s going to fall off a roof next week.
Aaaand now we know why Flynn is out of favor:
https://www.wsj.com/articles/mike-flynn-offers-to-testify-in-exchange-for-immunity-1490912959
That said, this sort of thing has been a double-fake-out before, where they ask for immunity and then proceed to “testify” to some cover story implicating nobody in any wrongdoing whatsoever, and in the meantime, suck up all the media coverage a la Oliver North. Also worth noting nobody’s yet taken him up on his offer–if I were the FBI, I’d pass too.