Modern Relevance of Invisible Ink Messages
As an indication of security, most inks mentioned above were already known by the end of World War I. However, in 1999, the U.S. Central Intelligence Agency successfully requested that a 1940s technical report on invisible ink remained exempt from mandatory declassification, based on the claim that invisible ink was still relevant to national security. The report thus remained classified until 2011.
Former MI-6 agent Richard Tomlinson alleges that Pentel Rolling Writer rollerball pens were extensively used by MI-6 agents to produce secret writing (invisible messages) while on missions.
In 2002, a gang was indicted for spreading a riot between federal penitentaries using coded telephone messages, and messages in invisible ink.
In 2008, a British Muslim, Rangzieb Ahmed, was alleged to have a contact book with Al-Qaeda telephone numbers, written in invisible ink.
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Famous quotes containing the words modern, relevance, invisible, ink and/or messages:
“The truth is rarely pure and never simple. Modern life would be very tedious if it were either, and modern literature a complete impossibility!”
—Oscar Wilde (1854–1900)
“Wherever the relevance of speech is at stake, matters become political by definition, for speech is what makes man a political being.”
—Hannah Arendt (1906–1975)
“Age is opportunity no less
Than youth itself, though in another dress,
And as the evening twilight fades away
The sky is filled with stars, invisible by day.”
—Henry Wadsworth Longfellow (1807–1882)
“International business may conduct its operations with scraps of paper, but the ink it uses is human blood.”
—Eric Ambler (b. 1909)
“Acknowledging separation feelings directly and sympathetically is the best way of coping with them. It is actually helpful to tell a toddler “I’ll miss you,” or “I will think of you during the day,” or “It is hard to say goodbye,” or “I can’t wait to see you at the end of the day.” These messages tell the child that he is important to the parent even when they are not together and that out of sight need not mean out of mind.”
—Alicia F. Lieberman (20th century)