Obama hails the heroes of 9/11

President Barack Obama has lauded the heroes of 9/11 — and of the years since — in a message to mark the 20th anniversary of the terror attacks.

North Texans remember and teach the history of 9/11 terror attacks 20 years later

Several events across North Texas will mark 20 years since the Sept. 11 attacks. While they may bring up painful memories for those old enough to remember exactly what they were doing when the World Trade Center's twin towers fell, the memorials are serving as important history lessons for the younger generation.