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Home › Forums › Modern Europe › World War I › Declassified WWI documents
The CIA just declassified some documents from WWI, including one pertaining to secret ink. According to Leon Panetta, the technique used was only recently made obsolete. Not everyone is buying that, however. It does seem strange that a recipe for invisible ink wouldn't have become obsolete long ago.CIA declassifies WWI-era secret documents
The documents reveal that World War I spies engraved messages on toe-nails and used lemon juice to write invisible letters. Terrible! 8)
Why wouldn't invisible ink still be used? It seems with everybody's reliance on technology that it might even be useful for some things because counter-intelligence types probably would not even be looking for invisible ink anymore because it is thought to be so dated.
That's a good question. I suppose carrier pigeons could be used to transmit information as well and the enemy would not suspect it.
That's a good question. I suppose carrier pigeons could be used to transmit information as well and the enemy would not suspect it.
China trains army of messenger pigeons !http://www.telegraph.co.uk/news/worldnews/asia/china/8356921/China-trains-army-of-messenger-pigeons.html http://www.strategypage.com/htmw/htmurph/articles/20110304.aspx
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