Americans on Tuesday are marking the 17th anniversary of the Sept. 11, 2001 terrorist attacks that killed almost 3,000 people in New York, Virginia and Pennsylvania
US Marks 17th Anniversary of 9/11 Attacks
![President Donald Trump and first lady Melania Trump participate in the September 11th Flight 93 memorial service in Shanksville, Pennsylvania, Sept. 11, 2018.](https://gdb.voanews.com/223e9fef-dc30-4c3c-b2a3-4522dbcfc7df_w1024_q10_s.jpg)
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President Donald Trump and first lady Melania Trump participate in the September 11th Flight 93 memorial service in Shanksville, Pennsylvania, Sept. 11, 2018.
![A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States, Sept. 11, 2018, in New York.](https://gdb.voanews.com/b906eb14-1f8e-4eb7-850f-05eb7d47660b_w1024_q10_s.jpg)
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A woman leaves flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States, Sept. 11, 2018, in New York.
![Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon, Sept. 11, 2018.](https://gdb.voanews.com/0a9213df-2851-41f9-8962-8dd0c88dcda2_w1024_q10_s.jpg)
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Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon, Sept. 11, 2018.
![A guest wipes tears at the south reflecting pool of the National 9/11 Memorial and Museum during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center in New York, Sept. 11, 2018.](https://gdb.voanews.com/16fa054d-9865-4fad-9540-8cf7ba25da42_w1024_q10_s.jpg)
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A guest wipes tears at the south reflecting pool of the National 9/11 Memorial and Museum during ceremonies marking the 17th anniversary of the September 11, 2001 attacks on the World Trade Center in New York, Sept. 11, 2018.