China - Guest of Honor - Frankfurter BuchMesse 09

Chinese author and political dissident Liao Yiwu, who was due to attend an event in Berlin connected with the Frankfurt Book Fair, has been banned from travelling to Germany just weeks after the fair's organizers revoked invitations for two other Chinese writers. Together with other Chinese authors, Liao was due to take part in a podium discussion on Oct. 10 in Berlin, organized in connection with the Frankfurt Book Fair, which will feature China as its guest country during its Oct. Protected content .
The two authors Bei Ling and Dai Qing, who are known critics of the regime, had already traveled to Frankfurt at their own expense, by the time the announcement had been made. Their appearance at a symposium prior to the opening of the world's largest publishing trade fair triggered fierce debate during which the official Chinese delegation left the room in protest.
Organizers of the fair revoked invitations for Chinese writers Bei Ling and Dai Qing to appear at a symposium on guest nation China in the run-up to the fair, conceding they had done so at the request of the Chinese organizing committee. In other words it looks like Germany allowed to be blackmailed by China at this year's Frankfurt Book Fair.
Some critics says it is too early to invite China at this event, while others say it would have a positive effect on the latitude for discussions in China. What is your opinion ?