POI 2x03, "Masquerade" watchalong

halotolerant and I are watching S2 of Person of Interest together-ish and talking about it. We're taking turns making discussion posts for each episode. Anyone who wants to join in is welcome, but PLEASE no spoilers (not even hints) past the episode we're discussing.

( Brief summary of 2x03 under the cut, with discussion and speculation in comments )