By John Keegan and Edmund Boys
After shaking things up for a few episodes, “Person of Interest” was taking it easy this episode. Its players moved around the chess board, lulling observers with a pleasing, if conventional, mid-game. But then, the minor pieces move aside, and, like a discovered check, expose the attack of a much more powerful player. It was another 'Gotcha' moment, and one of Grand Master proportions.