So listen to this and see if you think I'm right. In Episode 18 "Truth Takes Time" Jack injected Irina with a passive tracker once he takes the one out of her shoulder. Now I was thinking that he did that while they were having sex (cuz Marshall asked how he had injected without her knowing and thats the only conclusion i came to). Now once Irina had been tracked, she calls Sloane and tells him that until they know otherwise, they should believe he had been exposed as well. SOOOO, I was thinking that the only way that would be possibly would be if they had sex as well. What do y'all think about that. I would love to hear some feedback.