Congressional investigators want more information about a new airline security system before testing on it can begin.
They say the government needs to provide more information about a plan to use personal information to rank passengers as potential security threats.
The Bush administration wants to begin testing the Computer-Assisted Passenger Prescreening System in the spring so it can be implemented by the summer, but the questions raised by the General Accounting Office likely mean a delay.
According to a draft report obtained by The Associated Press, Congress is prohibiting the government from spending any money on testing until security and privacy concerns are addressed.
Privacy advocates say the program infringes on civil liberties and may label innocent people as security threats.
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