As more attacks occur on U.S. soil, both domestic and foreign, the conversation on terrorism will continue to evolve.
Social media gives terrorist groups and empathizers an edge: The tools necessary for mass recruiting.
Since 9/11, terrorism has continued to strike fear in the hearts of contemporary Americans. But even experts cannot agree on its definition.
Domestic terrorism accounted for slightly more than 73 percent of acts of terror in the United States between 1980 and 2000. International terrorism, although widely discussed, only made up 26 percent.