It never ceases to amaze me how often, and in what varied circumstances, I meet people who are not only quite clued in about election technology reform, but also surprising aware of some of the devils that lurk in the details. Today’s devil: "field validation" of voting devices, or: if I went to vote in a precinct, and someone told me I was about to vote on the wonderful new trustworthy voting system that I had heard about, how would I know that that was the device I was about to use?