Today marks 11 years since the September 11th terrorist attacks. On September 11th, 2001, four airliners full of passengers were hijacked by 19 terrorists. The planes crashed into the World Trade Center, the Pentagon, and a field in Shanksville, Pennsylvania. This morning, victim's families, our nation's leaders, and others will gather at those sites to honor those whose lives were lost. YNN’s Bobby Cuza has the story.