They are also very low on causes of death in the US.
https://www.start.umd.edu/pubs/START_AmericanTerrorismDeaths_FactSheet_Oct2015.pdf lists number of deaths due to terrorist attacks in the US. From 1995 to 2014, there were 3264 deaths in the US, of which 3003 occurred in 2001 (261 in all other years combined). That is 163 per year average including 2001, 9 per year average for all other years in that time period.
http://www.disastercenter.com/crime/uscrime.htm lists overall crimes by year. From 1995 to 2014, total murders and non-negligent homicides in the US ranged from 14,164 to 21,610 per year. If you are afraid of being intentionally killed, common non-politically-motivated crimes are the vast majority of the risk.
Of course, intentional homicides themselves are less common than deaths from car crashes, which ranged from 32,479 to 42,884 per year over those same years, according to https://en.wikipedia.org/wiki/List_of_motor_vehicle_deaths_in_U.S._by_year .