Diebold has responded to the criticism aimed at it by researchers at Princeton by attacking their professionalism and testing methods.  That's great, Diebold, but how about answering some of the actual concerns raise, rather than telling us what the Princeton researchers did wrong? Professor Felten has a good reputation in general and is well-known in the security community. Attacking him and his students isn't likely to win any points.  It also makes you look foolish, since people like me will draw attention to the fact you haven't answered the real question: Why haven't the Diebold machines been designed securely?