Campaigners have raised privacy concerns over a facial recognition database being developed by the FBI that could contain 52m images by 2015.
The civil liberties group Electronic Frontier Foundation (EFF) obtained information about the project through a freedom of information request.
It said it was concerned that images of non-criminals would be stored alongside those of criminals.
The FBI say the database will reduce terrorist and criminal activities.
The facial recognition database is part of the bureau’s Next Generation Identification (NGI) programme which is a large biometric database being developed to replace the current Integrated Automated Fingerprint Identification System (IAFIS).
The programme, which is being rolled out over a number of years, will offer “state of the art biometric identification services” according to the bureau’s website.
As well as facial recognition images the programme is being developed to include the capture and storage of finger prints, iris scans and palm prints.
source : bbc.com/news/technology-27037009