Tom Lowenthal/CPJ Staff Technologist and Bob Dietz/CPJ Asia Program Coordinator

A strong believer in individual privacy and personal freedom, Staff Technologist Tom Lowenthal is CPJ’s resident expert in operational security and surveillance self-defense. He is also a freelance journalist on security and tech policy matters. The fingerprint of his GPG public key is 1ADE 9951 1A97 95FA 3557 53DC 51E7 1B75 4A09 B187. Follow him on Twitter @flamsmark.

Features & Analysis
The headquarters of Baidu in Beijing. New censorship tool the Great Cannon is said to have redirected traffic from the popular Chinese site in a massive distributed denial of service attack. (AFP/Liu Jin)

China’s Great Cannon: New weapon to suppress free speech online

China, rated as the eighth most censored country in the world, in a report released by CPJ today, has long had a strong line of defense against free speech online. Its Golden Shield Project, launched by the Ministry of Public Security in 1998, relies on a combination of technology and personnel to control what can…

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