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:
“Certainly for us of the modern world, with its conflicting claims, its entangled interests, distracted by so many sorrows, so many preoccupations, so bewildering an experience, the problem of unity with ourselves in blitheness and repose, is far harder than it was for the Greek within the simple terms of antique life. Yet, not less than ever, the intellect demands completeness, centrality.”
—Walter Pater (1839–1894)
“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)
“He could not know my thoughts,
but between us,
the shuttle sped,
passed back,
the invisible web,
bound us....”
—Hilda Doolittle (1886–1961)
“The self-styled intellectual who is impotent with pen and ink hungers to write history with sword and blood.”
—Eric Hoffer (1902–1983)
“The first of the undecoded messages read: “Popeye sits in thunder,
Unthought of. From that shoebox of an apartment,
From livid curtain’s hue, a tangram emerges: a country.””
—John Ashbery (b. 1927)