Diebold: How to Steal an Election
The November/December issue of Technology Review in the Hack section, shows how the Diebold voting machines can be hacked to steal an election. In addtion to a photo-essay of the hack in progress, a how-to-hack lesson, the article offers Diebold's repsonse and the counter-response from Princton's Center for Information Technology Policy (CITP), where the study was conducted. The article mentions the Diebold system
While we're at it, here' the original CITP article.
For the interested, Technology Review delay's on-line publication of its current paper edition.