Recent terrorist attacks in Europe have increased death tolls and boosted fears on both sides of the Atlantic. Last year, I used common risk analysis methods to measure the annual chance of being murdered in an attack committed on U.S. soil by foreign-born terrorists. This blog is a back of the envelope estimate of the annual chance of being murdered in a terrorist attack in Belgium, France, Germany, Sweden and the United Kingdom. The annual chance of being murdered in a terrorist attack in the United States from 2001 to 2017 is about 1 in 1.6 million per year. Over the same period, the chances are much lower in European countries.
Methods and Sources
Belgium, France, and the United Kingdom are included because they have suffered some of the largest terrorist attacks in Europe in recent years. Sweden and Germany are included because they have each allowed in large numbers of refugees and asylum seekers who could theoretically be terrorism risks.
The main sources of data are the Global Terrorism Database at the University of Maryland for the years of 1975 to 2015, with the exception of 1993. I used the RAND Database of Worldwide Terrorism to fill in the year 1993. I have not compiled the identities of the attackers, any other information about them, or the number of convictions for planning attacks in Europe. The perpetrators are excluded from the fatalities where possible. Those databases do not yet include the years 2016 and 2017, so I relied on Bloomberg and Wikipedia to supply a rough estimate of the number of fatalities in terrorist attacks in each country in those two years through June 20, 2017. The United Nations Population Division provided the population estimates for each country per year.