Crowdsourcing social problems.

• Position: Letters - Letter to the editor

William Eggers' praise for Luis von Ahn's reCAPTCHA idea overlooks one vexing problem ("Crowdsourcing Social Problems," January). A number of the displayed words are from ancient texts and contain the long s (f), as in unjuftly or Perfephone, widely used in English printing until about 1800. The original printing in 1789 of the proposed Bill of Rights to our Constitution, for example, refers to "due procefs of law" and was proposed by the "Congrefs oF THE United...