I remember hearing an idea once – I’d like to cite it, but proper citation seems difficult, as I heard it from an acquaintance, and Mr. Google isn’t being his usual helpful self. The idea was, different politicians have these verbal tics, these filler catch-phrases, that indicate their deepest conversational anxieties. For President Obama, it’s “let me be clear.” According to this thesis, he is really concerned about being unclear, and this tic is so prominent in his speech that i...