To identify and manage supply chain risks in China, we can also categorized emergencies and crises into three categories as what we discussed in Section 1, i.e. natural disasters, malicious activities, and unexpected consequences arising from overly complex systems. Natural disaster event examples include the significant Wechuan Earthquake earlier last year where several factories were destroyed and supply chains associated with those factories were also destroyed. Malicious activities include the latest tainted milk scandal where the scope of the recall continues to widen. An example for unexpected consequences arising from overly complex systems is the extremely strict limits set by the government regarding factories and on transportation in and around Beijing in order to reduce air pollution during the Beijing Olympics.