After hanging up, Olivia tells Charlie, who's just worried his way over, that she's going to Cambridge to pick up Russell Simon. "Who's that?" asks Charlie, who always seems pissed at her for some reason. "A man we're taking into protective custody. I'll give you the details on the way," she says. "Oh, I'm going with you?" says Charlie. Poor Charlie!
On her way out, she says hi to Mitch, who turns out to be Michell Loeb, which is played like a bigger reveal than it really is, but presumably that's for anybody joining the show for the first time. Loeb tells her he's co-ordinating the investigation into her abduction: "I assume everything you remember is already in your debrief." Olivia says it is, and he tells her that if he finds anything, he'll let her know. "We'll find him," says Loeb. Olivia! Look at his shoes!
After a commercial break, Olivia leads Dr. Simon through the situation room, thanking him for his co-operation. "I suppose I should be thanking you. FBI tells you they're here to save your life, you listen," he says. While Harris watches, frowning, from Broyles' office, Simon says Kinberg was a dear friend.
In a private interview room now, Charlie tells Simon that they're doing everything they can to bring those responsible to justice. But Simon doesn't know who might be targeting him, other than students with grade grievances (and I have to say that if one of his students was able to do what was done to Kinberg, they probably do deserve to ace their epidemiology class), since the CDC isn't expecting him for three months and he didn't tell anyone about the job but his wife.
And as usual on law enforcement shows, the internal affairs guy sent to determine if everything's running smoothly does so by INTERRUPTING ACTUAL WORK. Harris knocks on the door and asks Simon to excuse them so he can talk to his agents.
Olivia and Charlie go out into the hallway, but it's just Olivia who Harris needs to talk to, so Charlie shuffles off to make his hound-dog eyes elsewhere. Harris icily tells Olivia he did not approve spending the taxpayer dollars that will be needed to put Harris in protective custody. He then ignores the snideness in Olivia's asking him how long he plans to stick around: "Until I have made a full assessment of how this office conducts its business. Did Broyles approve your request?" Olivia says he didn't. And I appreciate that she doesn't want Harris to know that Broyles decided not to ask permission himself, but now it's just going to look to Harris like Broyles doesn't have any control over his unit.