IE 11 is not supported. For an optimal experience visit our site on another browser.

9/11 tributes around the country mark 20th anniversary of attacks

02:19

Emotional remembrances at ground zero in New York City and around the country honored those killed in the most deadly terrorist attack in the nation’s history. President Biden and former presidents Obama and Clinton joined families remembering the 2,977 lives lost that day. NBC News’ Rehema Ellis reports for Sunday TODAY.