Americans have good reason to be afraid of another attack on U.S. soil -- only it's not going to come from the Islamic State.
As they have been intermittently since 9/11, Americans are again terrified about terrorism. Those who think a domestic terrorist attack is "likely" in the next few months increased by 10 percentage points from March to September, while the percentage who think the country is "less safe" than before 9/11 rose by 19 points over the past year. This change in perception occurred precisely as the Islamic State intended with the dissemination of its horrific beheading videos of two U.S. citizens in late August and early September, which 94 percent of Americans saw or heard about -- the highest percentage of any news event in the last five years. Despite this spike in fear, as several U.S. officials declared soon after: "We have no credible information that [the Islamic State] is planning to attack the homeland of the United States."