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)
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