Flynn's calls w/Kislyak, and subsequent transcripts, were an FBI product. So unmasking requests revealed by NSA recently at Grenell's request appear to have nothing to do w/those calls—on top of that, per WaPo, Flynn's name was not masked in FBI reports. https://t.co/KG4LfUce6e— Natasha Bertrand (@NatashaBertrand) May 20, 2020