Not all of Derrida's writing is to everyone's taste. He had an irritating habit of overusing the rhetorical question, which lends itself easily to parody: 'What is it, to speak? How can I even speak of this? Who is this "I" who speaks of speaking?

Given Loughner's obsession with meaninglessness and language, maybe Foucault & Derrida deserve some fault here, too.