By Richard Waters in San Francisco

Internet censorship is spreading rapidly, being practised by about two dozen countries and applied to a far wider range of online information and applications, according to research by a transatlantic group of academics.

The warning comes a week after a Turkish court ordered the blocking of YouTube to silence offensive comments about Mustafa Kemal Ataturk, the founder of modern Turkey, marking the most visible attack yet on a website that has been widely adopted around the world.

A recent six-month investigation into whether 40 countries use censorship shows the practice is spreading, with new countries learning from experienced practitioners such as China and benefiting from technological improvements.

Read the rest of the report from the Financial Times.

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