Ten years ago, 19 men trained by al-Qaeda carried out a coordinated terrorist attack on the United States that had been planned for years. The attackers simultaneously hijacked four large passenger aircraft with the intention of crashing them into major landmarks in the United States, inflicting as much death and destruction as possible. Three of the planes struck their targets; the fourth crashed into a field in Pennsylvania. In a single day, these deliberate acts of mass murder killed nearly 3,000 human beings from 57 countries. More than 400 of the dead were first responders, including New York City firefighters, police officers, and EMTs. It was one of the most-covered media events of all time, and after a decade, the images are still difficult to view. These attacks and the global reaction to them have profoundly shaped the world we live in, so it remains important to see the images and remember just what happened on that dark day. This entry is part two of a three-part series on the 10th Anniversary of the 9/11 Attacks -- (see also Part 1: The Week Before and Part 3: The Decade Since). [50 photos]
Mark Stahl of Somerset, Pennsylvania displays a photo he took early on September 11, 2001 after United Airlines Flight 93 crashed just outside of Shanskville. Stahl heard the crash and wandered up to the site where he took the photo before the area was cordoned off by rescue workers. The plane crashed shortly after two hijacked commercial planes slammed into the twin towers of the New York's World Trade Center, causing both 110-story landmarks to collapse.
(Reuters/Jason Cohn) #
An FBI aerial photograph shows the crash site of hijacked United Airlines Flight 93 in Shanksville, Pennsylvania, on September 12, 2001. The Boeing 757 was headed from Newark, New Jersey, to San Francisco when it made an abrupt turn near Cleveland and veered back east across Pennsylvania before crashing in Shanksville, killing all 44 aboard. Flight 93 was the fourth plane to crash in a coordinated terrorist attack that included New York's World Trade Center and the Pentagon, and the only one that didn't take lives on the ground.
(AP Photo/FBI) #
New York City firefighters pour water on the wreckage of 7 World Trade Center in New York City early on September 12, 2001. 7 World Trade Center was destroyed along with both the landmark World Trade Center towers after being struck by planes in a terrorist attack on September 11.
(Reuters/Mike Segar) #
Rubble covers the tracks of the New York City Subway #1 and #9 lines in the Cortland Street station under the World Trade Center, in this photo taken shortly after the attacks of September 11, 2001. According to the New York Times, New York City Transit officials determined that the damage was so extensive, that more than one mile of the line would have to be rebuilt.
(AP Photo/New York City Transit) #