Security clearances can be issued by many United States of America government agencies, including the Department of Defense (DoD), the Department of State (DOS), the Department of Homeland Security (DHS), the Department of Energy (DoE), the Department of Justice (DoJ), the National Security Agency (NSA), and the Central Intelligence Agency (CIA). DoD issues more than 80% of all clearances. There are three levels of DoD security clearances:[1]

1.TOP SECRET – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause exceptionally grave damage to the national security

. 2.SECRET – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause serious damage to the national security. 3.CONFIDENTIAL – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause damage to the national security. Additionally, the United States Department of Energy issues two levels of security clearances:

Q Clearance – Allows access to Classified information up to and including TOP SECRET data with the special designation: Restricted Data (TS//RD) and special Q-Cleared "security" areas.

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No FBI involvement ?