Including the "journalist" on the chat.
Who do you guess leaked the connection to him? Whether or not it was Waltz, I believe he’s the one ultimately responsible for protecting security.
It may well be a mistake. I suppose these "journalists' call government officials day and night looking for information - and they do deserve some of it, so it's easy to understand one being on the speed dial, so to speak.
But this inclusion is unforgivable, in either case. Measure twice; cut once.