GCHQ experts decided to stop producing academic papers about code-breaking techniques only in the two last decades of the last century.
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GCHQ experts decided to stop producing academic papers about code-breaking techniques only in the two last decades of the last century.
The author is critical of people who should be, but are not, thankful for the work intelligence and security agents do.
GCHQ experts decided to stop producing academic papers about code-breaking techniques only in the two last decades of the last century.
The author of the text suggests that the old-fashioned way of sending messages on postcards can be as dangerous as sending them through cyber-café computers.