Indeed, voter fraud is a critical issue - security technological measures should be solidly undertaken to prevent all associated negative outcomes - I myself have had a few regional SC glitches within the technological voting system over the years, ie the entering key not locking into opening up voting screen & a significant hold up in time to next voting screen - it has been publicly media documented that USA states have shown required "recounts", not just based upon "close numbers" but in actual "vote count" questionings.