Touch-screen opponents have alleged that Barnes' and Cleland's 2002 upset defeats are suspicious because of a last-minute fix to the machines.

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To many people, the solution seems simple. Consumers go to a store and are given a receipt listing what they purchased. So why can't voting machines produce a similar piece of paper the state can use to ensure the integrity of elections?

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"It really adds nothing to the system, [and] the people who think it will don't understand the history of voter fraud we've had with paper," she said.

Cox strongly defends electronic voting, calling Georgia's voting machines "the best solution available."

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In October, the Fulton County Elections Board sent Cox a letter that asked pointed questions about the security of Georgia's voting machines. The state's largest county uses 2,975 machines. Harry MacDougald, a Republican board member, wrote the letter after hearing about Rubin's report.

Cox wrote a six-page response explaining the procedures in place to ensure the machines cannot be manipulated.

The Fulton board replied Dec. 1, telling Cox she had alleviated members' concerns.

"I feel reasonably comfortable," MacDougald said recently. "There's always a theoretical possibility [of tampering]. That can never be excluded, regardless of the voting technology. But the measures that were previously in place, with the new measures and technical fixes that are being made, bring the issue within a reasonable degree of security."