And they wanted voting machine in Chicago back in the day, for what reason? I seem to forget.
You will never stop fraud until every voter is identified and linked to they ballot they cast. To be honest how many people don't already know how you voted? Secret ballot my rear, that is why we have campaign rallies.
Secret ballot is the only way to prevent vote buying and vote coersion. A person may have Kerry bumper stickers on his car, and a Kerry sign on his laws, but that doesn't mean that he can't decide at the moment of truth that he just can't support the guy. The decision is his alone--even if all his relatives and coworkers are Democrats, they cannot pressure him.