9/11: A moment of silence at 8:46 a.m. Add to ... AP Video Published Tuesday, Sep. 11, 2012 10:14AM EDT Last updated Tuesday, Sep. 11, 2012 10:16AM EDT A moment of silence was observed at 8:46 Tuesday morning in Washington DC and New York, marking when American Airlines Flight 11 struck the World Trade Center's North Tower on September 11, 2001 Watch More Video: Greece suffering from 'brain drain' as thousands of doctors leave 'It's big business now.' Saskatchewan family sells farm after three generations Say goodbye to popping bubble wrap? Shadow of debt crisis looms over Greek holiday isle Bomb threat made against Victoria-bound flight 'Yes' camp takes slim lead in Greek bailout referendum poll More Loblaw workers threaten to strike Trump is creating a 'nightmare scenario' for the GOP Freight train derails, catches fire in Tennessee Is the European Union divided over Greece? BP to pay $18.7-billion after 2010 Gulf of Mexico spill A glimpse at Canada’s least-visited national park Black church fires investigated across southern U.S. Animal control officers say dogs too often left in hot cars Foreign tourists say 'Cuban ethos' may fade with American influx South Korean 'comfort women' take protest to U.S. Sears Canada CEO steps down Macy's follows NBC, cuts ties with Donald Trump Report says Taiwan crash pilot 'pulled the wrong throttle' Why do Canadians say 'sorry' so much? Comments AA More Related to this Story Raw video: 9/11: A second moment of silence at 9:03 a.m.