National elections are supposedly hanging on as few as 350 votes, (if you believe the thugs in charge). This scheme should be good for the Rethuglican's because we're talking 2.5 million foreclosures nationwide so far, climbing to 7 million over the next year or two.
Obama's base in the young vote, many in college. Rove launched another voter purging program which sends letters to college addresses during the summer, when they aren't in school. The letters say "Do Not Forward" and when they are returned the name is purged from voter registration.
Other Rethuglican programs target prisoner lists. If your name is John Mason and you went to prison, you are matched with with every John Brown in four Rethuglican States and purged. If the list isn't as long as needed to insure a 350 vote victory, the matching is expanded to include all Mason Johns. If that still isn't good enough voting machines are distributed unequally and ballots are destroyed. Whatever it takes, the criminals will do it.
Of course, all you have to do, if you are aware of the problem is register again. But most of these targets, selected by age, income, race and other facors which statistically determine district outcomes, never find out until the day they vote. The its too late for that election cycle.
In any Government people hold real power, if they strike or riot, they can force change.
But with numbers like that, and a complacent population, Diebold becomes the tool of last resort.