Red Dust was about the late 1980s; it was a time of burgeoning hopes and opening up and people searching for new ways.

Tyrannies not only want to control your mind and thoughts but your flesh as well.

The Beijing Olympics represent China's grand entrance onto the world stage and confirmation of its new superpower status.

In 1989, I was on Tiananmen Square with the students, living in their makeshift tents and joining their jubilant singing of the Internationale. In the two decades since, each time that I have gone back, visions from those days seem to return with increasing persistence.

My hope is that the Chinese government will come to realise that it is futile to repress free speech, and that contrary to what they believe a regime's strength rests not its suppression of a plurality of opinions and ideas, but in its capacity and willingness to encourage them.

In February of this year I returned to China to research my next book. The authorities know about the novels of mine that have been published in the west, including the latest one, Beijing Coma, about a student shot in Tiananmen Square, but so far have allowed me to return.

The Chinese people have been forced to forget the Tiananmen massacre. There has been no public debate about the event, no official apology. The media aren't allowed to mention it. Still today people are being persecuted and imprisoned for disseminating information about it.