The story has been corrected on the wire and the amended fifth paragraph follows:

While some of the problems associated with e-voting are technology- based, many simply amount to a lack of best practices. For example, e-voting machines initially didn't generate paper records, so Diebold now includes a thermal printer. The printed summary, viewable through a window, reassures the voter and provides a paper-based alternative that officials can use to verify the electronic tabulations. But the Election Science Institute, in reviewing an Ohio election, worried that paper jams or printer malfunctions could cause "profound" problems. The advocacy group suggested, among other things, extensive training of poll workers.