President Obama has ordered federal employees to report any suspicious activities by their co-workers.
The idea is to look for behavior that may indicate employees are giving away sensitive information.
Particular attention will be paid to "the lifestyles, attitudes and behaviors -- like financial troubles, odd working hours, or unexplained travel -- of co-workers as a way to predict whether they might do 'harm to the United States,'" according to McClatchy News Service.
But McClatchy also reported that the program is based on behavioral profiling techniques that have not been proven to work.
The president ordered the move in 2011 after an Army private downloaded hundreds of thousands of documents and gave the information to WikiLeaks, the anti-government secrecy group.
The program covers nearly all government employees, including those who aren't involved in national security, such as the Peace Corps and the Department of Education.