Patriot Day and National Day of Prayer and Remembrance is today. The United States was attacked by Al Qaeda terrorists on this day in 2001. The terrorists commandeered four passenger planes. They crashed two planes into the World Trade Center in New York City and one plane into the Pentagon. The fourth airplane, destined for Washington, DC, crashed into western Pennsylvania. It appears the passengers tried to regain control of the aircraft. More than 3,000 people died in the attacks. The country responded by attacking possible Al Qaeda cells and other terrorist groups. Security within the country became more stringent. An excellent source of information for children is Dennis Brindell Fradin’s September 11, 2001, published by Marshall Cavendish.