http://en.wikipedia.org/wiki/Florida_Central_Voter_File
The Florida Central Voter File was an internal list of legally eligible voters used by the US Florida Department of State Division of Elections to monitor the official voter lists maintained by the 67 county governments in the State of Florida between 1998 and January 1, 2006. The exclusion of eligible voters from the file was a central part of the controversy surrounding the US presidential elections in 2000, which hinged on results in Florida. The 'Florida Central Voter File' was replaced by the Florida Voter Registration System on January 1, 2006 when a new federal law, the Help America Vote Act, came into effect.
James Lee's testimony[edit]
On 17 April 2001, James Lee testified, before the McKinney panel, that the state had given DBT the directive to add to the purge list people who matched at least 90% of a last name. DBT objected, knowing that this would produce a huge number of false positives (non-felons).[4]
Lee went on saying that the state then ordered DBT to shift to an even lower threshold of 80% match, allowing also names to be reversed (thus a person named Thomas Clarence could be taken to be the same as Clarence Thomas). Besides this, middle initials were skipped, Jr. and Sr. suffixes dropped, and some nicknames and aliases were added to puff up the list.
"DBT told state officials", testified Lee, "that the rules for creating the [purge] list would mean a significant number of people who were not deceased, not registered in more than one county, or not a felon, would be included on the list. DBT made suggestions to reduce the numbers of eligible voters included on the list". According to Lee, to this suggestion the state told the company, "Forget about it".
"The people who worked on this (for DBT) are very adamant... they told them what would happen", said Lee. "The state expected the county supervisors to be the failsafe." Lee said his company will never again get involved in cleansing voting rolls. "We are not confident any of the methods used today can guarantee legal voters will not be wrongfully denied the right to vote", Lee told a group of Atlanta-area black lawmakers in March 2001.