Provisional Ballots - 'ripe' for fraud?

Still more concerns about the election and potential fraud:

"Given the bogus registrations that have already been exposed by local news reports in places like Colorado, it is not hard to see the potential for fraud. If Democratic operatives have kept track of registrations, including bogus ones, it is possible for them to try to 'vote' those bad registrations. And who can doubt that certain elements of the Democratic party would feel morally justified in stealing this election, as payback for Florida 2000? The looser the provisional-ballot rules, the easier it will be to manipulate the system."