A report on global terrorism grabbed attention recently with a striking statistic: The number of terrorism-related deaths in North America jumped by a whopping 70 percent in 2017 compared with the previous year. And the source of the report, the Global Terrorism Database (GTD), is not one to pull a number out of thin air either; on the contrary, it is an authoritative resource on terrorist and militant attacks. Shocked as we were by this ostensibly massive increase in deaths from terrorism, we dug further into the report. It turns out that the GTD classified the 2017 Las Vegas attack, a massacre that left 59 dead, as an incident of terrorism.