U.S. intelligence officials are planning a sweeping system of electronic monitoring that would tap into government, financial and other databases to scan the behavior of many of the 5 million federal employees with secret clearances, Stephen Braun of the Associated Press reports this morning.

AP cited “current and former officials” for its story.

The purpose is to identify “rogue agents, corrupt officials and leakers” like Edward Snowden, the National Security Agency analyst who dumped thousands of pages of secret documents onto Wikileaks. The story said:

Current and former officials familiar with the DNI’s planning said the monitoring system will collect records from multiple sources of information about employees. They will use private credit agencies, law enforcement databases and threat lists, military and other government records, licenses, data services and public record repositories. During random spot checks, the system’s software will sift through the data to spot unusual behavior patterns.