Credit: A woman pauses among American flags that were inserted in each of the 2.983 names on the borders of the reflecting pools of the 9/11 Memorial, in New York, Tuesday, July 4, 2017. Americans celebrated their country's birthday with big-time fireworks, small-town parades and the quirky spectacle of competitive hot dog eating, marking a day of shared traditions in a nation that has grappled with divides this past year. (AP Photo/Richard Drew)
Fading memories of 9/11, different tactics present new terror threat
