Why not a receipt with a running tally for your vote and all votes cast?
That would end fraud completely, no?
The unions have pushed for this for a long time. The reasoning... they can compel their membership to show the receipts to confirm they voted as they were directed to do. On balance, this scares me more than electronic voting by providing the tool unions (and potentially others, for that matter) can use to make the secret ballot known.
Remember the New Black Panther thugs with batons standing outside the polling place in 2008? What's to keep them from telling voters entering, "We'll want to see who you voted for on your way out." The harm of that intimidation is beyond any electronic manipulation that is going on.