PHOTOS: US remembers Sept. 11

WASHINGTON — Americans commemorated the 17th anniversary of the 9/11 terror attacks with somber tributes Tuesday.

Nearly 3,000 people died in the attacks on 9/11, when international terrorism hit home in a way it previously hadn’t for many Americans.

Sept. 11 still shapes American policy, politics and everyday experiences in places from airports to office buildings.

See photos below.

Members of the military and other guests stand during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Members of the military and other guests stand during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
Two members of the New York City fire department look towards One World Trade Center through the open ceiling of the Oculus, part of the World Trade Center transportation hub in New York, Tuesday, Sept. 11, 2018, the anniversary of 9/11 terrorist attacks. The transit hall ceiling window was opened just before 10:28 a.m., marking the moment that the North Tower of the World Trade Center collapsed on September 11, 2001. (AP Photo/Craig Ruttle)
Two members of the New York City fire department look towards One World Trade Center through the open ceiling of the Oculus, part of the World Trade Center transportation hub in New York, Tuesday, Sept. 11, 2018, the anniversary of 9/11 terrorist attacks. The transit hall ceiling window was opened just before 10:28 a.m., marking the moment that the North Tower of the World Trade Center collapsed on September 11, 2001. (AP Photo/Craig Ruttle) (AP/Craig Ruttle)
A member of the military walks the grounds of the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
A member of the military walks the grounds of the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the Sept. 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Retired New York firefighter Bruce Stanley carries a photograph of fellow firefighter Liam Smith Jr. during a ceremony, Tuesday, Sept. 11, 2018, in New York, at the World Trade Center, marking the 17th anniversary of the terrorist attacks on the United States. Smith was one of 343 members of the fire department who were killed on Sept. 11, 2001. (AP Photo/Mark Lennihan)
Retired New York firefighter Bruce Stanley carries a photograph of fellow firefighter Liam Smith Jr. during a ceremony, Tuesday, Sept. 11, 2018, in New York, at the World Trade Center, marking the 17th anniversary of the terrorist attacks on the United States. Smith was one of 343 members of the fire department who were killed on Sept. 11, 2001. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
President Donald Trump and first lady Melania Trump, walk along the September 11th Flight 93 memorial, Tuesday, Sept. 11, 2018, in Shanksville, Pa., escorted by  (AP Photo/Evan Vucci)
President Donald Trump and first lady Melania Trump, walk along the September 11th Flight 93 memorial, Tuesday, Sept. 11, 2018, in Shanksville, Pa., escorted by (AP Photo/Evan Vucci) (AP/Evan Vucci)
President Donald Trump and first lady Melania Trump participate in the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. (AP Photo/Evan Vucci)
President Donald Trump and first lady Melania Trump participate in the Sep. 11 Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. (AP Photo/Evan Vucci) (AP/Evan Vucci)
New York City firefighters salute in front of a memorial on the side of a firehouse adjacent to One World Trade Center and the 9/11 Memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle)
New York City firefighters salute in front of a memorial on the side of a firehouse adjacent to One World Trade Center and the Sept. 11 memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle) (AP/Craig Ruttle)
A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
The National 9/11 Pentagon Memorial is seen in the foreground after the U.S. flag is unfurled Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
The National 9/11 Pentagon Memorial is seen in the foreground after the U.S. flag is unfurled Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
A U.S. flag is unfurled at sunrise Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
A U.S. flag is unfurled at sunrise Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
A woman drips water on a bouquet of flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
A woman drips water on a bouquet of flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
A New York City firefighter stands at attention by a memorial at the side of a firehouse adjacent to One World Trade Center and the 9/11 Memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle)
A New York City firefighter stands at attention by a memorial at the side of a firehouse adjacent to One World Trade Center and the Sept. 11 memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle) (AP/Craig Ruttle)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: New York Mayor Bill de Blasio, Nikki Haley, the U.S. Ambassador to the United Nations, Rudy Giuliani, lawyer for President Donald Trump and former mayor of New York, and Chris Christie, former governor of New Jersey, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: New York Mayor Bill de Blasio, Nikki Haley, the U.S. Ambassador to the United Nations, Rudy Giuliani, lawyer for President Donald Trump and former mayor of New York, and Chris Christie, former governor of New Jersey, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis and Joint Chiefs Chairman Gen. Joseph Dunford. Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis and Joint Chiefs Chairman Gen. Joseph Dunford. Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
Family members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial.  (AP Photo/Evan Vucci)
Family members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial. (AP Photo/Evan Vucci) (AP/Evan Vucci)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: U.S. Senator Chuck Schumer, D-NY, New York Gov. Andrew Cuomo, and former New York Mayor Michael Bloomberg, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: U.S. Senator Chuck Schumer, D-NY, New York Gov. Andrew Cuomo, and former New York Mayor Michael Bloomberg, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
From left, U.S. Senator Chuck Schumer, D-NY, former New York Mayor Michael Bloomberg, New York Gov. Andrew Cuomo and his girlfriend, TV chef Sandra Lee, attend the ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York.  (AP Photo/Mark Lennihan)
From left, U.S. Senator Chuck Schumer, D-NY, former New York Mayor Michael Bloomberg, New York Gov. Andrew Cuomo and his girlfriend, TV chef Sandra Lee, attend the ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
Vice President Mike Pence and his wife Karen Pence, lower their heads after laying a wreath during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Vice President Mike Pence and his wife Karen Pence, lower their heads after laying a wreath during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
Audience members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial.  (AP Photo/Evan Vucci)
Audience members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial. (AP Photo/Evan Vucci) (AP/Evan Vucci)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis, right. (AP Photo/Pablo Martinez Monsivais)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis, right. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
A man talks with a girl as they look at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
A man talks with a girl as they look at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
Bill Anders, left, and Sharon Custer ring bells as part of the Name Presentation and Ringing of Bells Remembrance during the September 11th Flight 93 Memorial Service in Shanksville, Pa., attended by President Donald Trump and first lady Melania Trump, Tuesday, Sept. 11, 2018. (AP Photo/Gene J. Puskar)
Bill Anders, left, and Sharon Custer ring bells as part of the Name Presentation and Ringing of Bells Remembrance during the September 11th Flight 93 Memorial Service in Shanksville, Pa., attended by President Donald Trump and first lady Melania Trump, Tuesday, Sept. 11, 2018. (AP Photo/Gene J. Puskar)
A musician plays his bagpipes as he walks with visitors and guests before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
A musician plays his bagpipes as he walks with visitors and guests before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais) (AP/Pablo Martinez Monsivais)
A man looks at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States. Tuesday, Sept. 11, 2018, in New York. In the background is the World Trade Center Transportation Hub. (AP Photo/Mark Lennihan)
A man looks at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States. Tuesday, Sept. 11, 2018, in New York. In the background is the World Trade Center Transportation Hub. (AP Photo/Mark Lennihan) (AP/Mark Lennihan)
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Members of the military and other guests stand during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Two members of the New York City fire department look towards One World Trade Center through the open ceiling of the Oculus, part of the World Trade Center transportation hub in New York, Tuesday, Sept. 11, 2018, the anniversary of 9/11 terrorist attacks. The transit hall ceiling window was opened just before 10:28 a.m., marking the moment that the North Tower of the World Trade Center collapsed on September 11, 2001. (AP Photo/Craig Ruttle)
A member of the military walks the grounds of the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Retired New York firefighter Bruce Stanley carries a photograph of fellow firefighter Liam Smith Jr. during a ceremony, Tuesday, Sept. 11, 2018, in New York, at the World Trade Center, marking the 17th anniversary of the terrorist attacks on the United States. Smith was one of 343 members of the fire department who were killed on Sept. 11, 2001. (AP Photo/Mark Lennihan)
President Donald Trump and first lady Melania Trump, walk along the September 11th Flight 93 memorial, Tuesday, Sept. 11, 2018, in Shanksville, Pa., escorted by  (AP Photo/Evan Vucci)
President Donald Trump and first lady Melania Trump participate in the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. (AP Photo/Evan Vucci)
New York City firefighters salute in front of a memorial on the side of a firehouse adjacent to One World Trade Center and the 9/11 Memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle)
A U.S. flag is unfurled at sunrise on Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
The National 9/11 Pentagon Memorial is seen in the foreground after the U.S. flag is unfurled Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
A U.S. flag is unfurled at sunrise Tuesday, Sept. 11, 2018, at the Pentagon on the 17th anniversary of the Sept. 11, 2001, terrorist attacks. (AP Photo/Pablo Martinez Monsivais)
A woman drips water on a bouquet of flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
A New York City firefighter stands at attention by a memorial at the side of a firehouse adjacent to One World Trade Center and the 9/11 Memorial site during ceremonies on the anniversary of 9/11 terrorist attacks in New York on Tuesday, Sept. 11, 2018. (AP Photo/Craig Ruttle)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: New York Mayor Bill de Blasio, Nikki Haley, the U.S. Ambassador to the United Nations, Rudy Giuliani, lawyer for President Donald Trump and former mayor of New York, and Chris Christie, former governor of New Jersey, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis and Joint Chiefs Chairman Gen. Joseph Dunford. Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Family members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial.  (AP Photo/Evan Vucci)
Attending a ceremony marking the 17th anniversary of the terrorist attacks on the United States are, left to right: U.S. Senator Chuck Schumer, D-NY, New York Gov. Andrew Cuomo, and former New York Mayor Michael Bloomberg, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
From left, U.S. Senator Chuck Schumer, D-NY, former New York Mayor Michael Bloomberg, New York Gov. Andrew Cuomo and his girlfriend, TV chef Sandra Lee, attend the ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York.  (AP Photo/Mark Lennihan)
Vice President Mike Pence and his wife Karen Pence, lower their heads after laying a wreath during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
Audience members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial.  (AP Photo/Evan Vucci)
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis, right. (AP Photo/Pablo Martinez Monsivais)
A man talks with a girl as they look at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States, Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan)
Bill Anders, left, and Sharon Custer ring bells as part of the Name Presentation and Ringing of Bells Remembrance during the September 11th Flight 93 Memorial Service in Shanksville, Pa., attended by President Donald Trump and first lady Melania Trump, Tuesday, Sept. 11, 2018. (AP Photo/Gene J. Puskar)
A musician plays his bagpipes as he walks with visitors and guests before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. (AP Photo/Pablo Martinez Monsivais)
A man looks at the North Pool at the World Trade Center during a ceremony marking the 17th anniversary of the terrorist attacks on the United States. Tuesday, Sept. 11, 2018, in New York. In the background is the World Trade Center Transportation Hub. (AP Photo/Mark Lennihan)

The Associated Press contributed to this report.


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