David Dill, Stanford Professor of Computer Science and Director of VerifiedVoting.org highlights key problems with electronic voting systems as states are currently implementing them. The machines are provably insecure, and don't give voters any opportunity to prove their accuracy. It's not enough just to clean up the code, Dill says -- we need to put outside checks into the system so voters can see that their votes are being counted (and re-counted) as cast. That's why EFF is working with Verified Voting to promote voter-verified paper ballots.