Terrorism is one of the exceptions to the global trends discussed in chapter 2 on negativity. It is getting worse. So are you right to be very scared of it? Well, first of all it accounted for 0.05 percent of all deaths in the world in 2016, so probably not. Second, it depends where you live. At the University of Maryland in the United States, a group of researchers has collected data about all terror events recorded in reliable media since 1970. The result is the freely available Global Terrorism Database, containing details of 170,000 terror events. This database shows that in the ten-year
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