Remembrances were held around the country to mark the 14th anniversary of the Sept. 11 attacks this week. In Shanksville, Pennsylvania, a new visitor center was dedicated at the Flight 93 National Memorial. The $26 million facility uses interactive exhibits to tell the story of how passengers and crew tried to regain control of the plane from Al Qaeda hijackers. Flight 93 was the only one of the four hijacked planes that did not reach its intended target on 9/11.