Clearly, Lauren and the Covenant would eventually figure out that the codes were a fakeout, and that the CIA knew about Lauren. Then they would put two and two together about Vaughn in the study. Anyway, it seems that CIA would do a bit a planning for the reveal (and put Lauren into custody before things turn ugly and after they have what they needed), but it doesn't seem so with the previews for next week showing poor Vaughn being tortured for betraying Lauren (I won't even go into the irony of that). Shouldn't Jack at least have seen this coming?