NEVER FORGET Help us fulfill our collective promise to never forget: get involved throughout the year or plan your own 9/11 observance. OBSERVE MOMENTS OF SILENCE WITH US Every year as part of the official commemoration ceremony held at the World Trade Center for victims' families, we observe six moments of silence marking the key events of 9/11. • 8:46 a.m.: Hijackers deliberately crashed American Airlines Flight 11 into floors 93 through 99 of the North Tower. • 9:03 a.m.: Hijackers deliberately crashed United Airlines Flight 175 into floors 77 through 85 of the South Tower. • 9:37 a.m.: Hijackers...