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Dr. John Graham-Cumming  

Chief Technical Officer, CloudFlare

John Graham-Cumming is a British programmer and writer best known for having originated a successful petition to the British Government asking for an apology for its persecution of Alan Turing. As of 2017, he is Chief Technology Officer of Cloudflare.

Graham-Cumming is the original writer of POPFile, an open-source, cross-platform e-mail filtering program. He is the author of The Geek Atlas, a travel book, and GNU Make Unleashed, a how-to technical manual for the GNU make program.

In October 2010, he started an organization whose aim is to build Charles Babbage's Analytical Engine, known as Plan 28. He has also campaigned for open-source software in science. In 2014, he launched his microblog MovieCode site, the intention of which is to connect film screenshots to specific extracts of source code.

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