The live webcast of the September 11 anniversary ceremony begins at 8:39 a.m. EST. The observance of the 13th anniversary is on the 9/11 Memorial plaza where family members of victims of the 2001 and 1993 attacks have been invited to read names. The first moment of silence is at 8:46 a.m., marking the time hijacked Flight 11 struck the North Tower. Click here to observe moments of silence.
http://www.911memorial.org/13th-anniversary
