The joke writes itself: President signs reauthorization of a broad, secretive, unaccountable law with no new oversight or privacy protections using an autopen, and Republicans have fixated on...the autopen. I actually couldn't think of a better recent example of Republicans dwelling on a relatively minor issue as an unprecedented and frightening symbol of creeping tyranny in the face of genuinely disturbing expansions of government power that most of them couldn't possibly care less about.