http://dictionary.reference.com/browse/uniform
uniform
identical or consistent, as from example to example, place to place, or moment to moment
to make uniform or standard
the same throughout in structure or composition
http://en.wikipedia.org/wiki/United_States_Navy_SEALs
The United States Navy Sea, Air and Land (SEAL) forces are the elite Special Operations Forces (or Special forces) of the U.S. Navy, employed in unconventional warfare, guerrilla warfare, foreign internal defense, direct action, counter-terrorism,Specific enemy snatch and grab (kidnaping), specific enemy assassination, hostage rescue, and special reconnaissance operations.
Those qualified to become Navy SEALs are authorized, after completing Basic Underwater Demolition SEAL school (BUD/S) and a specialized program known as SQT (SEAL Qualification Training), to wear and display the Special Warfare Badge, also known as the SEAL Trident. This badge serves as the insignia for the SEALs as a whole. It is usually worn along with the U.S. Navy paratrooper wings, which are awarded after 10 jumps. In order to blend in with units they are supporting, Navy SEALs wear modified versions of all service Battle Dress Uniforms (BDUs). However, during the Vietnam War, SEAL members wore tigerstripe camouflage, often with civilian blue jeans and 'coral' sneakers (rubber-soled high-top canvas sneakers), for patrol missions.
http://en.wikipedia.org/wiki/Plainclothes
Being undercover is disguising one's own identity or using an assumed identity for the purposes of gaining the trust of an individual or organization to learn secret information or to gain the trust of targeted individuals in order to gain information or evidence.
A separate technique is wearing plainclothes. This method is used by police and intelligence agencies. To wear plainclothes is to wear "ordinary clothes", instead of wearing a uniform typically associated with the occupation, in order to avoid detection or identification as a member of law enforcement. Plainclothes police officers typically carry normal police equipment and identification. Police detectives are often assigned to wear plainclothes instead of the uniform typically worn by their peers.
http://www.law.cornell.edu/uscode/html/uscode50/usc_sec_50_00000421----000-.html
TITLE 50 > CHAPTER 15 > SUBCHAPTER IV > § 421
421. Protection of identities of certain United States undercover intelligence officers, agents, informants, and sources
(a) Disclosure of information by persons having or having had access to classified information that identifies covert agent
Whoever, having or having had authorized access to classified information that identifies a covert agent, intentionally discloses any information identifying such covert agent to any individual not authorized to receive classified information, knowing that the information disclosed so identifies such covert agent and that the United States is taking affirmative measures to conceal such covert agent’s intelligence relationship to the United States, shall be fined under title 18 or imprisoned not more than ten years, or both.
(b) Disclosure of information by persons who learn identity of covert agents as result of having access to classified information
Whoever, as a result of having authorized access to classified information, learns the identify of a covert agent and intentionally discloses any information identifying such covert agent to any individual not authorized to receive classified information, knowing that the information disclosed so identifies such covert agent and that the United States is taking affirmative measures to conceal such covert agent’s intelligence relationship to the United States, shall be fined under title 18 or imprisoned not more than five years, or both.
(c) Disclosure of information by persons in course of pattern of activities intended to identify and expose covert agents
Whoever, in the course of a pattern of activities intended to identify and expose covert agents and with reason to believe that such activities would impair or impede the foreign intelligence activities of the United States, discloses any information that identifies an individual as a covert agent to any individual not authorized to receive classified information, knowing that the information disclosed so identifies such individual and that the United States is taking affirmative measures to conceal such individual’s classified intelligence relationship to the United States, shall be fined under title 18 or imprisoned not more than three years, or both.
(d) Imposition of consecutive sentences
A term of imprisonment imposed under this section shall be consecutive to any other sentence of imprisonment.
http://www.law.cornell.edu/uscode/html/uscode50/usc_sup_01_50_10_15.html
TITLE 50 > CHAPTER 15
CHAPTER 15—NATIONAL SECURITY
http://www.law.cornell.edu/uscode/html/uscode50/usc_sec_50_00000401----000-.html
TITLE 50 > CHAPTER 15 > § 401
§ 401. Congressional declaration of purpose
In enacting this legislation, it is the intent of Congress to provide a comprehensive program for the future security of the United States;
http://www.law.cornell.edu/uscode/html/uscode50/usc_sec_50_00000442---a000-.html
TITLE 50 > CHAPTER 15 > SUBCHAPTER VIII > § 442a
§ 442a. Counterintelligence initiatives
(a) Inspection process
(1) In order to protect intelligence sources and methods from unauthorized disclosure, the Director of National Intelligence shall establish and implement an inspection process for all agencies and departments of the United States that handle classified information relating to the national security of the United States intended to assure that those agencies and departments maintain effective operational security practices and programs directed against counterintelligence activities.
