style="overflow: hidden; color: #000000; background-color: transparent; text-align: left; text-decoration: none; border: medium none;">The problem China's leadership faces today is that there are no longer 100 flowers to worry about. There are 500m horticultural specimens thrusting into the light - and not a few of them have thorns. That is roughly the number of internet users in China today. While most of them are content to download music and chat innocuously to their friends, a significant minority use the internet to criticise the government and voice grievances.