Another GREAT episode tonight! I'm soooo excited for next week's finale! Makes me wonder what this mysterious organization is...Quantum, perhaps?
Quick question: What did the President's daughter "execute" on the computer? Was that the plan to wipe her computer clean?
No, it was her sending the payment to the hitman (I did enjoy that the two options for payment for an assassination were 'Cancel' and 'Execute'

)
Also, who did Agent Pierce call? And for what reason did he call him?
He called Ethan, the former chief of staff, to ask about how to check a voice recorder in his office, which Olivia had been working in. Obviously Pierce suspects she had something to do with Hodges' death, and wants to listen to the recorder to get proof.
Fun episode, but it did strain credibility a little with some contrivances, like Kim's plane being conveniently delayed so she would stick around until the exact moment they needed to use her as leverage
And Jack managed to locate, chase, and subdue Tony in the space of about 43 seconds!
Anyway, good job on Kim for spotting Cruz Pezuela from The Shield eyeballing her. Too bad she didn't recognize the goofy husband as a murderer from Dexter though!
Looks like a fun finale next week anyway. If I interpreted a scene in the preview correctly :