Author: Jeffrey D. Simon

Though largely forgotten today, one of the most destructive terrorist groups in the United States was the Galleanists, a fiery band of Italian anar...

The bombings of the Murrah Federal Building in Oklahoma City and of the World Trade Center in New York City have joined a long history of terrorist...

From Anders Breivik in Norway, who murdered scores of young people in a bombing and mass-shooting attack, to Omar Mateen, the Orlando killer who pe...