GCHQ’s centenary: the art of espionage in a digital age

It’s worth asking the question “What is GCHQ for?” The answer has changed a lot over the past 100 years…:

[…] Though GCHQ has been forced to become more accountable, there are still significant grey areas, such as the agency’s recent proposals to eavesdrop on encrypted conversations, which were widely condemned by a coalition of civil society groups. The Science Museum exhibition documents scandals and revelations that have dogged GCHQ in the past, such as the plans for a spy satellite that were revealed by investigative journalist Duncan Campbell in the New Statesman in 1987 (a copy of the original magazine is on display).

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Original article here