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A bell is rung for a moment of silence during the annual 9/11 commemoration ceremony at the 9/11 Memorial on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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Randall Goosby (R) and pianist Zhu Wang perform at the 9/11 Memorial on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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Firefighters from FDNY Engine Company 217, Brooklyn, salute near the name of their fallen colleagues at the 9/11 Memorial on Saturday. Pool Photo by David Hanschuh/UPI | License Photo
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Family members and loved ones of victims attend a ceremony at the 9/11 Memorial on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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Flowers are seen onthe 9/11 Memorial on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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(L-R) Former President Bill Clinton, former first lady Hillary Clinton, former President Barack Obama, former first lady Michelle Obama, President Joe Biden, first lady Jill Biden, former New York City Mayor Michael Bloomberg, Bloomberg’s partner Diana Taylor, Speaker of the House Nancy Pelosi and Senate Democratic leader Charles Schumer stand for the national anthem at the 9/11 Memorial on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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Chuck Schumer arrives at the 9/11 Memorial on Saturday. Pool Photo by Anthony Behar/UPI | License Photo
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Sen. Kirsten Gillibrand, D-N.Y., arrives at the 9/11 Memorial on Saturday. Pool Photo by Anthony Behar/UPI | License Photo
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Former New York City Mayor Michael Bloomberg arrives at a ceremony at the 9/11 Memorial on Saturday. Pool Photo by Anthony Behar/UPI | License Photo
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Vice President Kamala Harris speaks to the family and friends of the passengers and crew of Flight 93 attending the 20th anniversary observance of the 9/1111 terrorist attacks at the Flight 93 National Memorial on Saturday near Shanksville, Pa. Photo by Archie Carpenter/UPI | License Photo
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Former President George W. Bush speaks to the family and friends of the passengers and crew of Flight 93 attending the 20th observance of the 9/11 terrorist attacks at the Flight 93 National Memorial on Saturday. Photo by Archie Carpenter/UPI | License Photo
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President Joe Biden greets a young family member of a passenger of Flight 93 before placing a wreath along the Wall of Names on Saturday. Photo by Archie Carpenter/UPI | License Photo
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Paul Murdoch, architect of the Flight 93 National Memorial, attends a ceremony marking the 20th anniversary of the 9/11 terrorist attacks at the Flight 93 National Memorial on Saturday. Photo by Archie Carpenter/UPI | License Photo
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President Joe Biden along with Gordon Felt, president of the Friends of Flight 93, walks to the boulder that marks the sight of the crash of Flight 93 on Saturday. Photo by Archie Carpenter/UPI | License Photo
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The Bells of Remembrance ring as the names of the passengers and crew lost in the crash of Flight 93 are read at the Flight 93 National Memorial on Saturday. Photo by Archie Carpenter/UPI | License Photo
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The Bells of Remembrance ring as the names of the passengers and crew lost in the crash of Flight 93 are read at the Flight 93 National Memorial on Saturday. Photo by Archie Carpenter/UPI | License Photo
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Crew members of the USS Somerset listen to the speakers at the Flight 93 National Memorial on Saturday. Photo by Archie Carpenter/UPI | License Photo
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Manuel DaMota wears a shirt that reads “We Will Never Forget 9.11.01-9.11.21” as he embraces his mother Barbara near the 9/11 Memorial on Saturday. Pool Photo by Anthony Behar/UPI | License Photo
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A family member at the reflecting pool places a flag at the 9/11 Memorial on Saturday. Pool Photo by David Hanschuh/UPI | License Photo
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Port Authority police attend the 9/11 Memorial on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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Police Commissioner Dermot Shea arrives for ceremony at the 9/11 Memorial on Saturday. Pool Photo by Anthony Behar/UPI | License Photo
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Family members of Jayesh Shah make a rubbing of his name at the 9/11 Memorial on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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Former New York City Mayor Rudy Giuliani (C) attends the 9/11 commemoration ceremony at the National 9/11 Memorial and Museum on Saturday. Pool Photo by Chip Somodevilla/UPI | License Photo
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A man mourns at the 9/11 Memorial on the 20th anniversary of the September 11 attacks in New York City on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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A woman wipes a tear at the 9/11 Memorial on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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A U.S. is flag placed along with a photo of the Twin Towers and the name Daniel P. Trant, a Cantor Fitzgerald bond trader that died during 9/11, at a ceremony at Ground Zero on Saturday. Pool photo by Anthony Behar/UPI | License Photo
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An NYPD Honor Guard marches in with a damaged U.S. flag on Saturday. Pool photo by David Handschuh/UPI | License Photo
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A staff member places a flag at the memorial on Saturday. Pool Photo by David Handschuh/UPI | License Photo
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Bruce Springsteen performs at the 9/11 Memorial on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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A member of the FDNY visits the 9/11 Memorial on Saturday. Pool Photo by Mike Segar/UPI | License Photo
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People visit the 9/11 Memorial and Museum on Saturday. Pool photo by Mike Segar/UPI | License Photo
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Candles line the Wall of Names during the luminaria service at the Flight 93 National Memorial in Shanksville, Pa., on Friday. Photo by Archie Carpenter/UPI | License Photo
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Visitors are silhouetted after the luminaria service at the Flight 93 National Memorial on Friday. Photo by Archie Carpenter/UPI | License Photo
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Visitors unfold a large flag to honor the passenger and crew of Flight 93 at the Flight 93 National Memorial on Friday. Photo by Archie Carpenter/UPI | License Photo
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Visitors wait for the start of the luminaria service at the Flight 93 National Memorial on Friday. Photo by Archie Carpenter/UPI | License Photo