The sun rises over Lower Manhattan and One World Trade Center, at left, on Friday, September 11, in a view from Jersey City, New Jersey. The nation is marking the 14th anniversary of 9/11, the deadliest terrorist attack on U.S. soil. Nearly 3,000 people died that day. See other images of 9/11 events:
The sun rises over Lower Manhattan and One World Trade Center, at left, on Friday, September 11, in a view from Jersey City, New Jersey. The nation is marking the 14th anniversary of 9/11, the deadliest terrorist attack on U.S. soil. Nearly 3,000 people died that day. See other images of 9/11 events:
Mel Evans/AP
Gary Mascitis, 14, pays tribute to his uncle during an anniversary ceremony for the attacks in New York. Two hijacked planes hit the World Trade Center on 9/11. A third plane crashed into the Pentagon outside Washington and a fourth into a Pennsylvania field.
Gary Mascitis, 14, pays tribute to his uncle during an anniversary ceremony for the attacks in New York. Two hijacked planes hit the World Trade Center on 9/11. A third plane crashed into the Pentagon outside Washington and a fourth into a Pennsylvania field.
Andrew Burton/Getty Images
American flags are lowered to half-staff at the Washington Monument on September 11.
American flags are lowered to half-staff at the Washington Monument on September 11.
Mark Wilson/Getty Images
Honor guards salute during the national anthem in a 9/11 ceremony Friday at Indianapolis International Airport.
Honor guards salute during the national anthem in a 9/11 ceremony Friday at Indianapolis International Airport.
Darron Cummings/AP
Law enforcement officials stand at attention Friday during the national anthem in an anniversary ceremony in New York in commemoration of the 9/11 attacks.
Law enforcement officials stand at attention Friday during the national anthem in an anniversary ceremony in New York in commemoration of the 9/11 attacks.
Andrew Burton/Getty Images
Engine Company 205/Ladder Company 118 in New York's Brooklyn Heights remember the eight firefighters it lost on 9/11, including six who died in their firetruck under the rubble.
Engine Company 205/Ladder Company 118 in New York's Brooklyn Heights remember the eight firefighters it lost on 9/11, including six who died in their firetruck under the rubble.
Spencer Platt/Getty Images
President Barack Obama and first lady Michelle Obama lead a moment of silence on the White House South Lawn at 8:46 a.m. Friday -- the time when the first hijacked plane hit the World Trade Center on 9/11.
President Barack Obama and first lady Michelle Obama lead a moment of silence on the White House South Lawn at 8:46 a.m. Friday -- the time when the first hijacked plane hit the World Trade Center on 9/11.
SAUL LOEB/AFP/AFP/Getty Images
A bugler plays taps during Friday's ceremony on the South Lawn of the White House.
A bugler plays taps during Friday's ceremony on the South Lawn of the White House.
Evan Vucci/AP
Roses are placed Friday at the National September 11 Memorial in New York before a ceremony commemorating the 14th anniversary of the attacks.
Roses are placed Friday at the National September 11 Memorial in New York before a ceremony commemorating the 14th anniversary of the attacks.
KENA BETANCUR/AFP/AFP/Getty Images
Terry Miller, right, and Chris Miller, center, look for the name of their brother Robert Cromwell Miller at the Empty Sky memorial to New Jersey's victims of 9/11. The memorial is in Jersey City across the Hudson River from the World Trade Center site. Nephew James Miller, left, joins them Friday.
Terry Miller, right, and Chris Miller, center, look for the name of their brother Robert Cromwell Miller at the Empty Sky memorial to New Jersey's victims of 9/11. The memorial is in Jersey City across the Hudson River from the World Trade Center site. Nephew James Miller, left, joins them Friday.
Mel Evans/AP
Yachiyo Kuge carries a lantern to place at the Wall of Names at the Flight 93 National Memorial in Shanksville, Pennsylvania, on Thursday, September 10. Kuge is the mother of Toshiya Kuge, a Japanese passenger who died on United Airlines Flight 93 on 9/11. The plane crashed in Pennsylvania as passengers and crew tried to overcome the hijackers.
Yachiyo Kuge carries a lantern to place at the Wall of Names at the Flight 93 National Memorial in Shanksville, Pennsylvania, on Thursday, September 10. Kuge is the mother of Toshiya Kuge, a Japanese passenger who died on United Airlines Flight 93 on 9/11. The plane crashed in Pennsylvania as passengers and crew tried to overcome the hijackers.
Gene J. Puskar/AP
Some 3,000 flags erected by Pepperdine University students and staff honor the victims of 9/11 on the Malibu, California, on September 10.
Some 3,000 flags erected by Pepperdine University students and staff honor the victims of 9/11 on the Malibu, California, on September 10.
Mark Ralston//AFP/Getty Images
A visitor tours the crash site at the Flight 93 National Memorial on September 10. The visitor center complex was dedicated in honor of the victims of Flight 93 on the evening of the 14th anniversary of the 9/11 attacks.
A visitor tours the crash site at the Flight 93 National Memorial on September 10. The visitor center complex was dedicated in honor of the victims of Flight 93 on the evening of the 14th anniversary of the 9/11 attacks.
Jeff Swensen/Getty Images
A visitor views a display at the Flight 93 National Memorial visitor center on September 10.
A visitor views a display at the Flight 93 National Memorial visitor center on September 10.
Jeff Swensen/Getty Images
Flags carry the names of the 9/11 victims at Memorial Park in Omaha, Nebraska, on September 10.
Flags carry the names of the 9/11 victims at Memorial Park in Omaha, Nebraska, on September 10.
Nati Harnik/AP
<a href="index.php?page=&url=http%3A%2F%2Fwww.911memorial.org%2Fblog%2Flook-tribute-light" target="_blank" target="_blank">The Tribute in Light</a> illuminates the sky behind One World Trade Center and the Lower Manhattan skyline on Wednesday, September 9.
The Tribute in Light illuminates the sky behind One World Trade Center and the Lower Manhattan skyline on Wednesday, September 9.
Mark Lennihan/AP