Calling all Constitutional lawyer wannabes: What IS the crime?

[DefenseLawyer]

12. This would be it, I think.

(a) Whoever knowingly and willfully communicates, furnishes, transmits, or otherwise makes available to an unauthorized person, or publishes, or uses in any manner prejudicial to the safety or interest of the United States or for the benefit of any foreign government to the detriment of the United States any classified information—

(3) concerning the communication intelligence activities of the United States or any foreign government; or
(4) obtained by the processes of communication intelligence from the communications of any foreign government, knowing the same to have been obtained by such processes—
Shall be fined under this title or imprisoned not more than ten years, or both.

Any discussion with the Russians about sanctions or our government position on them probably included classified matters, and which we know Flynn among others had access to.