She devised the Mercuri Method of electronic voting, whereby the electronic voting machine prints a paper ballot for the voter to verify after casting the vote. Brazil uses the Mercuri Method for elections thanks to the efforts of its namesake.
Mercuri put up a web site when she noticed the 2000 Presidential election falling into confusion, and within 15 minutes had a call from the Associated Press - who had found her web site. She has testified before Congress and the U.S. Supreme Court about voting systems.
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