No sooner had Finnigan and Buerk spoken out, than they found that they, too, were being hounded by the progressive mob. The focus shifted ever so slightly from ‘Evans the rapist’ to ‘Evans and his friends the rape apologists’.

In order to spare themselves and save their careers, both Finnigan and Buerk were forced into humiliating acts of public apology, where they confessed to their ‘wrong-thinking’, issued the proper ritual condemnations of Evans, and begged to be pardoned. This is what brought to my mind the link with Deng Rong’s book.

There is an obvious lesson here about how quickly calls for ‘freedom of speech’ can be transformed into calls for ‘freedom of speech for those who agree with me’. Would I dare to write this article if I was a journalist working in Britain? Would any mainstream media outlet publish it? They are happy to talk at great length about events in Hong Kong; events in Parliament Square are swept discreetly under the carpet. ‘Freedom of speech’ is a right that requires careful management by those who control the megaphone.

The Guardian newspaper went out of its way to prove the truth of this aphorism. On Sunday 16th one of its journalists, Barbara Ellen, visited the Evans story for the second time in its ‘public discussion’ section, titled “Comment is Free – but Facts are Sacred!” I attempted to post a comment on the article. The full text of the comment is here. Within minutes my comment was removed by the censors, my posting account was permanently closed, and I was banned from any further activity on “Comment is Free – but Facts are Sacred!” Truly, freedom of speech is far too precious a gift to be wasted on people who do not hold the correct opinions…

But there is a second issue too, about the process by which groups are transformed into mobs. As I thought of the Hong Kong demonstrators, the Occupy Parliament Square protests, and the Evans case, I found myself reflecting on the students who were the vanguard of the Cultural Revolution, how gullible and unworldly they were, how easily they were led astray by malign and cynical manipulators, how quickly their idealism was transformed into arrogance, intolerance, hatred and then violence - violence that they ended up inflicting not only on their opponents, but on each other - and how the results were ten years of chaos, anarchy, and ruin in China.