ABCNEWS.com | Florida Voting Under Microscope Again

"Voter advocates promise to scrutinize election results to see if tallies match exit polls, threatening to sue over suspicious results. Computer programmers say touchscreens, which as many as 50 million Americans are eligible to use in the November election, are vulnerable to software glitches, hackers, power outages and other problems.

'I'm very worried that if the election is very, very close, the outcome will not be believed by a lot of people,' said Avi Rubin, professor of computer science and technical director of the Information Security Institute of Johns Hopkins University."

Sounds a lot like the 2000 election.