Avi Rubin, an expert on electronic voting systems, worked as a judge in two elections in 2004, and he worked the chaotic Maryland primary election yesterday. His blog article about a day spent with Diebold voting machines gives impressions from the trenches of electronic voting. From the article: "The least pleasant part of the day was a nagging concern that something would go terribly wrong, and that we would have no way to recover. I believe that fully electronic systems, such as the precinct we had today, are too fragile. The smallest thing can lead to a disaster... I can't imagine basing the success of an election on something so fragile as these terrible, buggy machines... As far as I'm concerned, the 'tamper tape' does very little in the way of actual security... I hope that we got it right in my precinct, but I know that there is no way to know for sure. We cannot do recounts."