Dexter: See-Through

Vince: "Diatoms. Eukaryotic algae."Dexter: (to himself) "Okay, this is the first time I regret not being a bigger nerd."What did "See-Through" mean? Maybe it was that no one seemed to be seeing what was really going on inside everyone else. The detectives and five of the victims. Deb and Lundy. Deb and Gabriel. Maria and Pascal's fiance. Even Harry and young Dexter.Or maybe it was that