September 11, 2001, is a day that changed the United States forever. While we say that we will "never forget" the acts of terrorism, those of us who were young at the time might find it difficult to remember the utter shock and panic that overcame our country. This harrowing footage was captured by a high school student on that fateful day as his classmates found out about the attacks. According to the student behind the camera, their teacher walked into the classroom and said, "Some idiot flew a plane into the World Trade Center." As the camera pans across their stunned faces, it is clear that their world will never be the same.