On the eleventh of September, 2001, four planes set off bound for separate destinations across the United States of America. Little did the passengers know as they boarded these planes that they would never live to see another day, as Muslim hijackers were onboard the flights with the intention of launching a terrorist attack on the country. Two of the four planes were deliberately crashed into the Twin Towers in Lower Manhattan, New York City, killing thousands of people and injuring hundreds more. A third plane was flown, once again deliberately, into the Pentagon – the headquarters of the US Department of Defence – killing everyone on board. The fourth plane was bound for the country’s capital city, Washington D.C., but the passengers managed to stop the hijackers from reaching this destination and instead crashed the aircraft into a field in Pennsylvania. Everyone on board the plane was still killed, but they saved hundreds of innocent…