This week, the Michigan Supreme Court upheld a 1996 never-enforced voter ID law, which requires Michigan voters to produce valid photo IDs in order to vote. The law has been the subject of controversy on both privacy and economic grounds — privacy advocates condemn any linking of basic constitutional rights and liberties with identification such a state driver’s license that will, in the year 2013, be engineered to comply with the Real ID Act. The cost of identification, although low, is also a concern — and is viewed by many legal experts as a “poll tax” in violation of the 24th Amendment to the Constitution.