I am from China and I remember that when I heard about this, I was shocked but not totally surprised. Firstly I have to clarify that it was not just a car accident, but it was done on purpose by terrorists. And clearly they wanted to make a statement by doing that in the place which could attract so many attentions. I am really pissed of by what the traffic warden said, because it was his duty to keep the place safe by being alert all the time. Although the accident wasn't all his fault, at least he should take some responsibility. But he seemed to be flee away from his responsibility by saying this.