Viewpoint: School bomb threats - How much precaution is enough?

When a school receives a bomb threat, those responsible for keeping students safe have to act before they know whether the danger is real. How do they decide what level of response is proportionate? On Viewpoint, Lynlee Foo speaks with Associate Professor Razwana Begum, Head of the Graduate Programme in Global Security and Strategy at the Singapore University of Social Sciences, about how threats are assessed, why an evacuation does not necessarily mean a threat is considered credible, and how schools can prepare for security incidents without creating unnecessary fear or complacency.  See omnystudio.com/listener for privacy information.