Man Knowledge: The History of Invisible Ink by Brett & Kate McKay:
In April of this year, the CIA released its oldest classified documents and the last from the World War I era. Dating from 1917 and 1918, the papers mainly contain recipes for “secret writing” – instructions for agents of the Office of Naval Intelligence (the CIA did not yet exist) on how make invisible ink. Such a low-tech espionage method may seem quaint today, but invisible ink was once a very serious business and an important tool in a spy’s bag of tricks.
So much so that the CIA bizarrely waited almost a century before revealing its most basic recipes to the public (information which was available on the web and to every Boy Scout), claiming even in the 90s that the material constituted a foundation upon which more modern tactics had been built and that invisible ink remained a viable tool for its agents.
While the use of invisible ink has now been almost entirely eclipsed by modern technology, its history is incredibly fascinating, and today as part of our Man Knowledge series we’ll explore its use through time.
The Basics of Invisible Ink...................................
Gunny G Favorites!
- AMERICA BACK TO ITS ROOTS? FIRST, DESTROY THE R PARTY!
- AMERICAN IMPERIALISM
- ARE COPS CONSTITUTIONAL? AS STANDING ARMY? RIGHT TO BE LEFT ALONE?, ETC.
- ARE POLICE OBLIGATED TO PROTECT CITIZENS?
- BING! (Pvt)
- BLOGGERS: THE NEW PAMPHLETEERS
- CHESTY PULLER...ON LOYALTY DOWN...
- CONSTITUTION: WRITINGS BY SEVERAL AUTHORS
- COWBOY NATION
- DR ED RIVERA, PROFESSOR OF LAW AND GOVERNMENT...
- GUNNY G SITES, ETC.
- INCOME TAX NOT NECESSARY
- KARL MARX, HORACE GREELEY, and JFK, Etc.
- NEW PAMPHLETEERS
- NO, OBAMA DID NOT DO IT ALL BY HIMSELF !!!!!
- NOW BLOG THIS! ~ GET YOUR OWN BLOG & START BLOGGING RIGHT NOW!
- OUR SECRET CONSTITUTION
- OUR TRUE HERITAGE and HISTORY: YET ANOTHER VIEW...
- PERENNIS: EUROPE'S PLAN TO SAVE THE SOUTH
- REAGAN ON CONSERVATISM and LIBERTARIANISM...
- REPUBLIC OR "GENUINE" DEMOCRACY: ANOTHER VALID VIEW !!!!!
- THE "R" PARTY: RED FROM THE START By: ALAN STANG
- THE MEN WHO DESTROYED THE CONSTITUTION ~ BY: THOMAS DILORENZO
- THE REAL RON PAUL
- THE REVOLUTION WILL NOT BE AMERICAN !
- UNDERSTANDING WHY THE CONSTITUTION WAS AND REMAINS A DETRIMENT TO INDIVIDUAL LIBERTY
- WHAT IS A NEOCON, PSEUDO-CON, AINO?
- What Is The FOURTH ESTATE or Fourth Branch of Government ?
- WHY THE CONSTITUTION HAD TO BE DESTROYED (TJD)
- why the gun is civilization
- WOODROW WILSON REVEALING SPEECH!