But first, China's Communist Party may well have celebrated 60 years of rule yesterday, but with high security and Beijing's citizens being told to keep off the streets and watch the celebrations on TV, there was nervousness that critical voices might make themselves heard. One author Xiao Jiansheng has spent twenty years writing "Chinese History Revisited", in which he takes a critical look at Chinese culture. That's another voice some in the party don't want to hear. Publication was halted in mainland China, but with us in the studio is the Hong Kong publisher Bao Pu. Summer may be coming to an end. But if you're a regular beachgoer, you may have noticed that not all of our beaches are quite as pristine as you might wish, particularly if they are a bit remote. Rock and roll music has long carried an edge of rebellion. That hasn't always been the case in Hong Kong where it's more often watered down into the more mainstream Cantopop. But even here, rock music and authoritarian politics aren't exactly comfortable bedfellows. Recently , Danny Summer sang for the DAB, to much anger in some quarters. He had previously sung one of the anthems of the pro-Democracy movement. Rock and politics collide, as both pro-Beijing and pro-democrat parties arrange concerts to coincide with the 60th anniversary celebrations.