Remembering the terrorist attacks of 9/11
At least 1,000 family members, survivors, rescuers and officials were gathered as the ceremony at the World Trade Center began with a moment of silence and tolling bells. Then, relatives began reading out the names of the nearly 3,000 people killed when terrorist-piloted planes hit the trade center, the Pentagon and a Pennsylvania field, hurling America into a new consciousness of the threat of global terrorism.
United Airlines Flight 175 flies into the South Tower at 9:03 a.m. on Tuesday, Sept. 11, 2001.
A damaged tower collapses.
Firefighters raise a flag late in the afternoon of Sept. 11, 2001, in the wreckage of the World Trade Center towers.
People covered in dust walk over debris near the World Trade Center in New York.
More At
http://www.latimes.com/visuals/framework/la-na-911-images-20170911-htmlstory.html

Red was visiting her sister in Manhattan when the planes hit....
She still can't look at the photos of it. It really left a mark on her since she was born and raised in NYC and had lived in Manhattan for years.
Watching now a show from that day like the Today show gives an unsettling perspective on how things changed that day.
When the first plane hit, the Today show hosts mention it as if it may be a serious, but nonetheless small scale accident. The speculation is that perhaps a private plane pilot had some malfunction or incident that caused him to swerve into the building. The Today show has to decide whether to switch all their attention to this crash or continue on with their normal show and follow up on this crash later in the program. But soon they hear that it was a large plane. Still the speculation continues that it was an accident , and while the possibility of terrorism is mentioned, it doesn't become the dominant theme of the coverage until the second plane hits.
Today, when there IS an accident of some sort, it is often immediately speculated if it could be terrorist related. The expectation has been flipped.
After Oklahoma City the fear subsided. After 9-11 it subsided, but to a much lesser extent.