Twenty years ago, the world changed forever. On September 11, 2001, the world trade centers in NYC were hit by two out of four planes hijacked by Islamic extremist group al Qaeda. The other one struck the Pentagon just outside Washington, D.C, and the fourth crashed in a field in Shanksville, Pennsylvania. The attacks caused 2996 deaths and over 6000 injuries. The attacks not only changed the way that people value their families but changed airport security rules and caused h