Tomorrowland!

Pictured is an entry gate at Walt Disney World that measures the recorded finger geometry of a multi-day ticket holder to ensure that a ticket has not changed hands. As of the end of September 2006, Disney World upgraded their scanners to measure fingerprints. This allows for greater accuracy while still remaining far more cost-effective that photo identification for each park goer.

Privacy advocates have taken issue with the lack of transparency in regard to the upgrade. Park goers are not told about the information collected or even given details on the process for entering the park. The gates at Disney World are currently the largest single commercial application of biometrics in the United States.

For more details about this application, see this article from the Medill School of Journalism.