Well, couldn't _only_ the voting machine record the time the token was used as long as the token is random? (They could just generate N tokens -- one for each r

Well, couldn't _only_ the voting machine record the time the token was used as long as the token is random? (They could just generate N tokens -- one for each registered voter -- and pull one from the pool each time.) If they recorded the time you took your token and the time the token was used then they'd have a small enough pool of people to work with. I know in my state if a precinct has a small enough pool of registered voters it doesn't show the vote totals from the precinct because of privacy issues.