I concur with the opinions expressed so far. Without a paper trail to verify the vote, the system is ripe for fraud.
When Computer Science PROFESSORS express concern . . . folks, there's something to be concerned about.
I just caught the last couple of minutes of a radio show discussing the recall and absentee ballots. Although I didn't hear the whole thing, I did hear the hosts mention that there is now a box somewhere (not sure where, maybe a registration form?) in which you can check an option to receive absentee ballots in perpetuity. (Inotherwords, a one-time check.)
Are you thinking what I'm thinking? Such as lots of dogs, cats, and dead people on the voter rolls...permanently?