Emergency Management

Question 1: (intentional Disruptions) In chapter 2 the focus is on different types in intentional disruptions.  Please provide an example of an intentional disruption that has occurred so far this year either on a local, state or federal level.  For this question the book is “The Power of Resilience” By Yossi Sheffi URL

Question 2:
Detectability of of an event can be positive (before the impact), zero (at instance of occurrence), or negative (after the disruption has taken place). Please provide an example of an event for each of the three examples. 

Question 3: (Eyjafjnallajokull Volcano) Why is it an emergency management issue that most European airspace was closed for a week? How did that impact businesses and the community?