Person of Interest: Sarah Shahi Ponders Shaw's Sex Life (Um, Knives?), Talks Love/Hate With Root

When last we tuned into CBS’ Person of Interest (Tuesdays, 10/9c), Shaw got a blast from the past — in the former of young POI who evoked memories of her own sad childhood — and then she received a jolt in the present, when at episode’s end Root roused her from slumber with a stun gun. Sarah Shahi, who like Amy Acker became a series regular this season, spoke with TVLine …READ MORE