Privacy group Electronic Privacy Information Center (EPIC) has urged the TSA to consider alternatives to expanding the collection of biometric identifiers for the TSA Pre-Check application.In a letter, EPIC explained why it believes there is potential for biometric identifiers to be used for purposes other than determining eligibility for Pre-Check, and the “substantial personal privacy risks” for applicants if the databases associated with Pre-Check were compromised.EPIC also proposed privacy enhancing alternatives, such as limiting the storage of biometric identifiers or providing information on how to have information removed from databases associated with Pre-Check.EPIC routinely highlights the risks of large, overbroad government databases and the privacy risks inherent in the collection of biometric information.Earlier this month, the Transportation Security Administration said it will be assessing new checkpoint screening technology at a TSA Pre lane at Hartsfield-Jackson Atlanta International Airport and one at Denver International Airport . TSA is conducting a proof of concept demonstration to evaluate the operational and security impact of using biometrics to verify passengers' identities using their fingerprints.