From the AP Wire Aug. 20, 2006 Cole County Circuit Judge Richard Callahan is hearing arguments on a challenge to a new Missouri law requiring voters to show photo identification to cast ballots. The law is among the first nationally in a still relatively young movement - one intended to prevent voter fraud, as supporters tell it; or to suppress certain voters, as opponents claim. A federal judge in Indiana upheld that state's voter photo ID law in April. But in Georgia last month, a state and federal judge each issued orders blocking that state's law. The Missouri decision will swing the pendulum one way or the other - forming a symbolic two-out-of-three-states consensus (at least temporarily, since appeals could reverse the trial court decisions in any one of those states).