Shi Tao...was released on August 23 after serving nearly nine years of a 10-year sentence for "providing state secrets to overseas organisations"… "Shi Tao's arrest and imprisonment, because of the actions of Yahoo China, signalled a decade ago the challenges to freedom of expression of internet surveillance and privacy that we are now dealing with," [the head of PEN International's Writers in Prison Committee] said…Yahoo later apologised for handing over Shi's emails to Chinese authorities. In 2007, it settled a lawsuit brought on behalf of Shi and another Chinese journalist who was convicted partly through information provided by Yahoo.