On October 19, an appeal was filed in Citizen Center v Gessler, the case over whether Colorado should be prohibited from printing individual bar codes on ballots. The plaintiffs argue that the bar codes make it possible for employees of the election office to see how they voted. The U.S. District Court had ruled on September 22 that nothing in the U.S Constitution requires a secret ballot. The case will now be heard by the 10th circuit, case no. 12-1414.