. >> we've reported before about mckinley junior high school. what started as an unusual art project has grown over the years. the last time we visited the school, the students were unveiling a tribute to the heroic first responders on 9/11. the hallway art wasn't simply for decoration. it was also for education. one of the teachers behind the project realized that many students were growing up unaware of a very important part of our recent history -- the terrorist attacks on september 11, 2001. >> they knew nothing about 9/11, and we decided we're gonna change it. we're gonna do a mural 270 feet long that will explain the whole thing. >> that part of the project was finished back in 2012, but they didn't stop there. >> thank you for giving me the opportunity... >> recently, guests gathered at the school once again. and this time, in addition to police officers and firefighters, there were representatives from the military on hand. that's because the newest mural created by the students honors the men and women of our armed forces. it begins with