As election day comes to a head, so does the discussion of security in electronic voting systems. All over the country, TV news reports indicate operational problems and vulnerabilities with e-voting machines. Change the channel to HBO, and you might catch "Hacking Democracy," the cable network's documentary on security flaws in voting systems. And you can't escape it by going to the movies: Robin Williams' "Man of the Year" is all about a TV commentator who wins the presidency through a glitch in an e-voting system.