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Four years after Florida made a mockery of American elections, there is every reason to believe it could happen again. This time, the problems will most likely be with the electronic voting that has replaced chad-producing punch cards. Some counties, including Bay County, use paper ballots that are fed into an optical scanner, so a recount is possible if there are questions. But 15 Florida counties, including Palm Beach, home of the infamous "butterfly ballot," have adopted touch-screen machines that do not produce a paper record. If anything goes wrong in these counties in November, we will be in bad shape.
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http://www.nytimes.com/2004/03/14/opinion/14SUN1.html?th(registration required?)