439 days to go
When a man from Xinjiang threw a fiery ball at the portrait of Chairman Mao above the entrance to the Forbidden City this month, the slightly damaged painting was quickly replaced. Security officials said the vandal was a 35-year-old migrant worker who had been diagnosed as mentally ill last year.
A day later, Beijing police confirmed one of their officers had been stabbed, again by a seemingly disturbed individual acting alone, in Tiananmen Square.
While serious, both incidents were relatively insignificant in terms of the overall preparations for the Olympics, and the reaction in both cases was swift and measured, but they also brought the issue of security straight back on to the agenda.
Ever since Beijing was granted the Olympic Games in 2001, there has been an automatic assumption security would be no problem for the Chinese authorities, who have an excellent record in keeping the streets safe and a lid on dissent.
There will be 94,000 security personnel at the Games in August next year, and security experts forecast that number will increase after this summer, when various procedures will be tested.