Cities across the United States will observe the 20th anniversary of the Sept. 11, 2001, terrorist attacks with a number of special events. Many will be live streamed.
9/11: 20 years later
It's been 20 years since September 11, 2001, when terrorists orchestrated by Osama bin Laden hijacked four passenger planes and attacked on American soil. A total of 2,977 people were killed. The attacks changed America and the world in many ways. Thousands still suffer health effects of exposure to the toxic dust at Ground Zero. Many others may be traumatized again by coverage of the anniversary. TV and film producers have sought to tell the stories of 9/11, personal and communal tragedies.