We can’t change history, but we can learn from it. As a rule, professional historians are loath to draw explicit lessons from the past. We leave that to popularizers and to figures like Lord Acton or ...

PBS NewsHour's Student Reporting Labs network of high school journalism programs across the country gathered the reflections of teenagers to explore the legacy of 9/11 on their generation. They ...

In the decade since the Sept. 11, 2001 terrorist attacks, physical security, human contingency planning and an evolution in technological capabilities have improved the odds that business can carry on ...

The moon rises between the "Tribute in Light" illuminated next to One World Trade Center (L) during events marking the 13th anniversary of the 9/11 attacks on the World Trade Center, in Jersey City, ...

Five years ago, the nation recoiled in horror as two planes crashed into the World Trade Center towers in New York City on Sept. 11, claiming the lives of more than 3,000 people. After the towers ...