A couple of things came to mind when reading this thread. Food for thought may be related? Anyway I wanted to share:

OPERATION OPEN EYES
Mind Control in America
Five Easy Steps To Create
A Manchurian Candidate

http://www.rumormillnews.com/operation.htm

(snip)

At Level 5, The "trigger" which activates The program is inserted.

At Level 5, very carefully, a code word, sequence of numbers, or a voice imprint is "etched" into the subject’s brain. This is commonly known and referred to as the "trigger" which will activate the subject into action. At this time, the subject will also be implanted with a coded tracking device so that his location will always be known.

Once Level 5 programming is complete, the subject is released to live a very normal and sometimes useful life. The subject will have no memory of being involved with the intelligence community, and will have no memory of the hypnosis sessions.

The "sleeper" who has been given a complete new identity will have no memory of his "former" life, therefore he will never question who he is. The subject will live a normal life as a doctor, an airline pilot, a politician, an eccentric loner, or a movie star until the subject is required to perform the missions for which he was created.

(end snip)

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ALSO:

NUMBERS STATIONS
http://www.surfingtheapocalypse.com/intelligence.html#numbers

NUMBERS STATIONS--For decades, SWLs have been hearing stations that do nothing but read blocks of numbers, usually using a woman's voice, in a variety of languages and on innumerable different frequencies. All available evidence indicates that the majority of these transmissions are connected to espionage activities. These are the numbers stations, the most enduring mystery on the shortwave bands. Even though they do not operate on any fixed schedule or frequencies known to the public, numbers stations are really very easy to hear. Just tune outside the established shortwave broadcasting or ham radio bands and you'll hear several with patient tuning. While numbers stations can be heard any time on any frequencies, most seem to be heard in North America during the evening and night hours on frequencies from 3 to 12 MHz.

http://www.dxing.com/numbers.htm

SOUNDS OFF THE WIRELESS

http://www.cisquet.demon.nl/soundsframe.htm

THE CONET PROJECT--RECORDINGS OF SHORTWAVE NUMBERS STATIONS--For more than 30 years Shortwave radio spectrum has been employed by the worlds intelligence agencies to transmit secret messages. These messages are transmitted by hundreds of "Numbers Stations". Shortwave Numbers Stations are a perfect method of anonymous, one way communication. Spies located anywhere in the world can be communicated to by their masters via small, locally available, and unmodified Shortwave receivers. The encryption system used by Numbers Stations, known as a one time pad is absolutely unbreakable
http://www.ibmpcug.co.uk/~irdial/conet.htm

SPY CENTRE--SHORTWAVE SPY NUMBERS STATIONS--"59372 98324 19043 78903 95320...". The mechanized female voice drones on and on... What have you stumbled on to? Instructions to spies? Messages exchanged between drug dealers? Deliberate attempts at deception and mis-information? Chances are, all of the above! What you've tuned in to is called a "Spy Numbers Station". They've been on the air for several decades, and only recently have the mysteries started to unfold. But there's still much we don't know about these mysterious stations. With the information on these pages, you'll discover the little that we do know about these stations, what we're still trying to learn, and how you too can tune in to the spies.
http://www.spynumbers.com/

SPY NUMBERS STATIONS DATABASE--You can use this database to enter your loggings of Numbers Stations. You can also search the database for specific loggings, by date range, time, frequency, mode, and ENIGMA designation. To date, there are over 20,000 loggings in the database, and it's quickly growing. It's the quickest and easiest way to find out what stations are being heard, and how you can hear them. You can easily find out what numbers stations may be on the air right now, based on loggings in the database.
http://www.spynumbers.com/numbersDB/

ENIGMA--ENIGMA is the journal of the European Numbers Information Gathering and Monitoring Association. ENIGMA is a non-profit making association of listeners who monitor and gather information on 'Numbers Stations' and other related radio transmissions. ENIGMA aims to bring together listeners and enthusiasts and provide quality information on subjects not normally available from mainstream publications.

http://www.ibmpcug.co.uk/~irdial/enigma.htm

SHORTWAVE SPY NUMBERS STATIONS--Shortwave Spy Numbers Stations Types

http://www.totse.com/files/FA006/spystatn.htm