The CEO of Diebold, the voting machine manufacturer, has promised to deliver the important swing state of Ohio to George W. Bush in the upcoming Presidential election. He didn't explain how.

Black Box Voting explains the gaping security hole which leaves millions of votes susceptible to fraud.

Issue: Manipulation technique found in the Diebold central tabulator -- 1,000 of these systems are in place, and they count up to two million votes at a time.
By entering a 2-digit code in a hidden location, a second set of votes is created. This set of votes can be changed, so that it no longer matches the correct votes. The voting system will then read the totals from the bogus vote set. It takes only seconds to change the votes, and to date not a single location in the U.S. has implemented security measures to fully mitigate the risks.

This program is not "stupidity" or sloppiness. It was designed and tested over a series of a dozen version adjustments.