Now, on Dec. 29, Flynn, national security adviser-designate, was not only doing his job calling the ambassador, he was a private citizen. Why was he unmasked by U.S. intelligence? Who is this "senior official" who dropped the dime on him? Could this official have known how many times Flynn spoke to Kislyak, yet not known what was said on the calls? That is hard to believe. This looks like a contract hit by an anti-Trump agent in the intel community, using Ignatius to do the wet work.
Ignatius should be dragged in to testify... he's the hub.