MN has paper ballots and also has automatic recounts of random precincts within each county regardless of the vote margin. We have had two major state wide recounts in recent years and both have been successful - they have been transparent and fully auditable.

http://www.ceimn.org/ceimn-state-recount-laws-searchable-database/states/Minnesota

There are other issues about whether certain people are eligible to vote, and how to handle that on election day and what to do if it is later determined that someone who shouldn't have voted did vote. (Answer: not much you can do, since their vote is anonymous... BUT there are VERY VERY few cases where this happens and is discovered.)

There is also a video of his 2007 Nobel Conference lecture titled "The World's Energy Problem and What We Can Do About It" available http://gustavus.edu/events/nobelconference/2007/chu-lecture.php which as the title suggests, is very relevant to this discussion.

Actually, they happen to have a 10Gig link on that system but they can't get the code ( VLC? OS X? ) to be efficient enough to saturate the link before they run into another bottleneck. However they are doing their best to make it possible for everyone to watch this in HD. For me on a multicast enabled internet2 connection, the 20 MBit HD stream looks great!