9/11 Attacks: The 101 Most Iconic Photos

The Tribute in Lights illuminates the sky over lower Manhattan on the ninth anniversary of the attack on the World Trade Center in New York, September 11, 2010.

The Tribute in Lights illuminates the sky over lower Manhattan on the ninth anniversary of the attack on the World Trade Center in 

New York, September 11, 2010.

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The second tower of the World Trade Center bursts into flames after being hit by a hijacked airplane in New York in this September 11, 2001.

The second tower of the World Trade Center bursts into flames after being hit by a hijacked airplane in 

New York in this September 11, 2001.

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A reflection can be seen on a glass barrier in the Top Of The Rock observation deck in front of the Tribute in Light memorial shining behind the Empire State Building marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010.

A reflection can be seen on a glass barrier in the Top Of The Rock observation deck in front of the Tribute in

 Light memorial shining behind the Empire State Building marking the ninth anniversary of the September 11 

attacks on the World Trade Center in New York September 11, 2010.

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New York City firefighters look at the detroyed facade of the World Trade Center September 13, 2001 two days after the twin towers were destroyed when hit by two hijacked passenger jets.

New York City firefighters look at the detroyed facade of the World Trade Center September 13, 2001 two 

days after the twin towers were destroyed when hit by two hijacked passenger jets.

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A fire ball explodes one of the towers at the world trade center after being hit by two planes, September 11, 2001 In New York City.

A fire ball explodes one of the towers at the world trade center after being hit by two planes, 

September 11, 2001 In New York City.

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A person falls to his death from the World Trade Center after two planes hit the Twin Towers September 11, 2001 in New York City.

A person falls to his death from the World Trade Center after two planes hit the Twin Towers

 September 11, 2001 in New York City.

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Wellwishers cheer as recovery personnel drive by on their way to the World Trade Center site September 12, 2001 in New York City.

Wellwishers cheer as recovery personnel drive by on their way to the World Trade Center site September 12,

 2001 in New York City.

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Rescue workers conduct search and rescue attempts, descending deep into the rubble of the World Trade Center in New York on Friday September 14, 2001.

Rescue workers conduct search and rescue attempts, descending deep into the rubble of the World Trade 

Center in New York on Friday September 14, 2001.

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A pair of shoes sit in a box in Union Square, a memorial site for the World Trade Center attack in New York, September 17, 2001.

A pair of shoes sit in a box in Union Square, a memorial site for the World Trade Center attack in New York, 

September 17, 2001.

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US President George W Bush holds an American flag during a Memorial Service at the Pentagon October 11, 2001 in Arlington, Virginia.

US President George W Bush holds an American flag during a Memorial Service at the Pentagon October 11, 2001 in Arlington, Virginia.

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People look out of the burning North tower of the World Trade Center in New York City September 11, 2001. Both towers were hit by planes crashing into the buildings. Shortly after this photo was taken this tower fell. In the worst attack on American soil since Pearl Harbor, three hijacked planes slammed into the Pentagon and New York's landmark World Trade Center on Tuesday, demolishing the two 110-story towers that symbolise US financial might.

People look out of the burning North tower of the World Trade Center in New York City September 11, 2001. Both towers were hit by planes crashing into the buildings. Shortly after this photo was taken this tower fell. In the worst attack on American soil since Pearl Harbor, three hijacked planes slammed into the Pentagon and New York's landmark World Trade Center on Tuesday, demolishing the two 110-story towers that symbolise US financial might.

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It's been 10 years since the fateful day that changed the face of America. We look at some of the most memorable and haunting images of the hours that changed the course of modern history.

It's been 10 years since the fateful day that changed the face of America. We look at some of the most memorable and haunting images of the hours that changed the course of modern history.

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NYPD police officer Ken Radigan rubs his eyes after briefly sleeping in a pew at St. Paul's Episcopal Chapel, near the site of the World Trade Center attack, September 21, 2001 in New York City. The chapel is serving as a relief area for rescue workers.

NYPD police officer Ken Radigan rubs his eyes after briefly sleeping in a pew at St. Paul's Episcopal Chapel, near the site of the World Trade Center attack, September 21, 2001 in New York City. The chapel is serving as a relief area for rescue workers.

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A satellite image of lower Manhattan shows smoke and ash rising from the site of the World Trade Center at 11:43 a.m. September 12, 2001 in New York City.

A satellite image of lower Manhattan shows smoke and ash rising from the site of the World Trade Center at 11:43 a.m. September 12, 2001 in New York City.

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A young woman lays down on the grave of US Marine Corps Lance Corporal Noah Pier on Memorial Day at Arlington National Cemetery May 31, 2010 in Arlington, Virginia. Pier was killed Feburary 12, 2010 in Marja, Afghanistan. This is the 142nd Memorial Day observance at the cemetery.

A young woman lays down on the grave of US Marine Corps Lance Corporal Noah Pier on Memorial Day at Arlington National Cemetery May 31, 2010 in Arlington, Virginia. Pier was killed Feburary 12, 2010 in Marja, Afghanistan. This is the 142nd Memorial Day observance at the cemetery.

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The World Trade Center south tower (L) burst into flames after being struck by hijacked United Airlines Flight 175 as the north tower burns following an earlier attack by a hijacked airliner in New York, September 11, 2001.

The World Trade Center south tower (L) burst into flames after being struck by hijacked United Airlines Flight 175 as the north tower burns following an earlier attack by a hijacked airliner in New York, September 11, 2001.

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New York City firefighters pour water on the wreckage of 7 World Trade Center in New York City early September 12, 2001. 7 World Trade Center was destroyed along with both the landmark WorldTrade Center towers after being struck by planes in a terrorist attack on September 11.

New York City firefighters pour water on the wreckage of 7 World Trade Center in New York City early September 12, 2001. 7 World Trade Center was destroyed along with both the landmark WorldTrade Center towers after being struck by planes in a terrorist attack on September 11.

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Israeli President Moshe Katsav donates blood in his Jerusalem residence September 12, 2001, for the victims of yesterday's terrorist attacks in the United States. Israel has declared a national day of mourning in solidarity with the US after devastating aircraft attacks in New York and Washington DC Flags flew at half-mast across the Jewish state as Israel expressed its sorrow over the unprecedented assault on its main ally while scores of Israelis and others donated blood.

Israeli President Moshe Katsav donates blood in his Jerusalem residence September 12, 2001, for the victims of yesterday's terrorist attacks in the United States. Israel has declared a national day of mourning in solidarity with the US after devastating aircraft attacks in New York and Washington DC Flags flew at half-mast across the Jewish state as Israel expressed its sorrow over the unprecedented assault on its main ally while scores of Israelis and others donated blood.

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Staff Sergeant Keith Fidler kisses his wife Cynthia, as their son Kolin looks on, during a homecoming ceremony in New York, April 8, 2011 for the New York Army National Guard's 442nd Military Police Company's return from Iraq.

Staff Sergeant Keith Fidler kisses his wife Cynthia, as their son Kolin looks on, during a homecoming ceremony in New York, April 8, 2011 for the New York Army National Guard's 442nd Military Police Company's return from Iraq.

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American flags fly at half staff on the grounds of the Washington Monument in memory of the victims of the terror attacks in New York City and at the Pentagon September 17, 2001 in Washington, DC.

American flags fly at half staff on the grounds of the Washington Monument in memory of the victims of the terror attacks in New York City and at the Pentagon September 17, 2001 in Washington, DC.

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US President George W Bush speaks to Vice President Dick Cheney by phone aboard Air Force One September 11, 2001 after departing Offutt Air Force Base in Nebraska.

US President George W Bush speaks to Vice President Dick Cheney by phone aboard Air Force One September 11, 2001 after departing Offutt Air Force Base in Nebraska.

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A New York City fireman calls for 10 more rescue workers to make their way into the rubble of the World Trade Center September 14, 2001 days after the September 11, 2001 terrorist attack.

A New York City fireman calls for 10 more rescue workers to make their way into the rubble of the World Trade Center September 14, 2001 days after the September 11, 2001 terrorist attack.

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A man watches smoke emit from the former site of the World Trade Center September 12, 2001 in Hoboken, NJ. Smoke filled the air all over lower Manhattan in the aftermath of Tuesday's terrorist attack and destruction of the World Trade Center.

A man watches smoke emit from the former site of the World Trade Center September 12, 2001 in Hoboken, NJ. Smoke filled the air all over lower Manhattan in the aftermath of Tuesday's terrorist attack and destruction of the World Trade Center.

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Smoke pours from the former site of the World Trade Center in Manhattan September 12, 2001 from a vantage point in Hoboken, NJ. Smoke filled the air all over lower Manhattan in the aftermath of Tuesday's terrorist attack and destruction of the World Trade Center.

Smoke pours from the former site of the World Trade Center in Manhattan September 12, 2001 from a vantage point in Hoboken, NJ. Smoke filled the air all over lower Manhattan in the aftermath of Tuesday's terrorist attack and destruction of the World Trade Center.

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The World Trade Center south tower (L) is engulfed in smoke after being struck by hijacked United Airlines Flight 175, as the north tower burns following an earlier attack by a hijacked airliner in New York City September 11, 2001.

The World Trade Center south tower (L) is engulfed in smoke after being struck by hijacked United Airlines Flight 175, as the north tower burns following an earlier attack by a hijacked airliner in New York City September 11, 2001.

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Hijacked United Airlines Flight 175 (L) flies toward the World Trade Center twin towers shortly before slamming into the south tower (L) as the north tower burns following an earlier attack by a hijacked airliner in New York City September 11, 2001. The stunning aerial assaults on the huge commercial complex where more than 40,000 people worked on an ordinary day were part of a coordinated attack aimed at the nation's financial heart. They destroyed one of America's most dramatic symbols of power and financial strength and left New York reeling.

Hijacked United Airlines Flight 175 (L) flies toward the World Trade Center twin towers shortly before slamming into the south tower (L) as the north tower burns following an earlier attack by a hijacked airliner in New York City September 11, 2001. The stunning aerial assaults on the huge commercial complex where more than 40,000 people worked on an ordinary day were part of a coordinated attack aimed at the nation's financial heart. They destroyed one of America's most dramatic symbols of power and financial strength and left New York reeling.

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Members of a US Army carry team move the transfer case of US Army Sergeant Aaron M Smith during a dignified transfer at Dover Air Force Base on October 3, 2009 in Dover, Delaware. Sergeant Aaron M Smith who was from Manhattan, Kansas was killed in Afghanistan while supporting Operation Enduring Freedom.

Members of a US Army carry team move the transfer case of US Army Sergeant Aaron M Smith during a dignified transfer at Dover Air Force Base on October 3, 2009 in Dover, Delaware. Sergeant Aaron M Smith who was from Manhattan, Kansas was killed in Afghanistan while supporting Operation Enduring Freedom.

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Smoke comes out from the west wing of the Pentagon building September 11, 2001 in Arlington, after a plane crashed into the building and set off a huge explosion.

Smoke comes out from the west wing of the Pentagon building September 11, 2001 in Arlington, after a plane crashed into the building and set off a huge explosion.

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New York police stand near a wanted poster printed by on a full page of a New York newspaper for Saudi-born militant Osama bin Laden in the financial district of New York, in this file photo from September 18, 2001. Osama bin Laden was named by US President George W Bush as the prime suspect in the attacks in New York and Washington. This year's anniversary of the September 11 attacks in New York and Washington will echo the first one, with silence for the moments the planes struck and when the buildings fell, and the reading of 2,792 victims' names.

New York police stand near a wanted poster printed by on a full page of a New York newspaper for Saudi-born militant Osama bin Laden in the financial district of New York, in this file photo from September 18, 2001. Osama bin Laden was named by US President George W Bush as the prime suspect in the attacks in New York and Washington. This year's anniversary of the September 11 attacks in New York and Washington will echo the first one, with silence for the moments the planes struck and when the buildings fell, and the reading of 2,792 victims' names.

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US Marine pallbearers carry the remains of Marine LCpl Andrew Patten to his burial site at Arlington National Cemetery December 14, 2005 in Arlington, Virginia. Andrew Patten was serving in Iraq with Fox Company 2/7 when he was killed December 1, along with 9 other Marines when an improvised explosive device (IED) detonated near their base on the edge of Fallujah. Eleven other Marines were injured in the attack.

US Marine pallbearers carry the remains of Marine LCpl Andrew Patten to his burial site at Arlington National Cemetery December 14, 2005 in Arlington, Virginia. Andrew Patten was serving in Iraq with Fox Company 2/7 when he was killed December 1, along with 9 other Marines when an improvised explosive device (IED) detonated near their base on the edge of Fallujah. Eleven other Marines were injured in the attack.

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A US Marine Honor Guard bugler plays taps during an interment funeral ceremony for US Marine Cpl Mark David Kidd, of Milford, Michigan, at Arlington National Cemetery August 14, 2007 in Arlington, Virginia. Kidd who was killed at a checkpoint in the Al Anbar province of Iraq last January, was buried at Arlington after being interred and then exhumed in his home state of Michigan.

A US Marine Honor Guard bugler plays taps during an interment funeral ceremony for US Marine Cpl Mark David Kidd, of Milford, Michigan, at Arlington National Cemetery August 14, 2007 in Arlington, Virginia. Kidd who was killed at a checkpoint in the Al Anbar province of Iraq last January, was buried at Arlington after being interred and then exhumed in his home state of Michigan.

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A law enforcement officer reacts after the first tower of the World Trade Center fell in New York City early September 11, 2001. Both towers were hit by planes crashing into the building. Victims from the attack on the World Trade Center - many suffering from extensive burns - began arriving at hospitals in New York City about an hour after two planes slammed into the twin towers.

A law enforcement officer reacts after the first tower of the World Trade Center fell in New York City early September 11, 2001. Both towers were hit by planes crashing into the building. Victims from the attack on the World Trade Center - many suffering from extensive burns - began arriving at hospitals in New York City about an hour after two planes slammed into the twin towers.

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A September 13, 2001 file photo shows US President George W Bush's eyes welling up with tears while speaking in the Oval Office of the White House. New York City plans to mark the third anniversary of the attacks on the trade center with an observance at the site on September 11 with parents and grandparents of victims reading their names.

A September 13, 2001 file photo shows US President George W Bush's eyes welling up with tears while speaking in the Oval Office of the White House. New York City plans to mark the third anniversary of the attacks on the trade center with an observance at the site on September 11 with parents and grandparents of victims reading their names.

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Palestinian President Yasser Arafat donates blood in Gaza hospital September 12, 2001, for the victims of yesterday's terrorist attacks in the United States. Palestinians said they sympathised with the victims of the attack in the United States despite their criticism of US support for Israel during the Palestinian uprising.

Palestinian President Yasser Arafat donates blood in Gaza hospital September 12, 2001, for the victims of yesterday's terrorist attacks in the United States. Palestinians said they sympathised with the victims of the attack in the United States despite their criticism of US support for Israel during the Palestinian uprising.

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A group of firefighters walk amid rubble near the base of the destroyed south tower of the World Trade Center in New York in this file photo from September 11, 2001. This year's anniversary of the September 11 attacks in New York and Washington will echo the first one, with silence for the moments the planes struck and when the buildings fell, and the reading of 2,792 victims' names.

A group of firefighters walk amid rubble near the base of the destroyed south tower of the World Trade Center in New York in this file photo from September 11, 2001. This year's anniversary of the September 11 attacks in New York and Washington will echo the first one, with silence for the moments the planes struck and when the buildings fell, and the reading of 2,792 victims' names.

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The wreckage of the World Trade Center smoulders in this picture taken September 15, 2001. The twin towers of the World Trade Center collapsed after they were struck by two hijacked jetliners on September 11 killing thousands.

The wreckage of the World Trade Center smoulders in this picture taken September 15, 2001. The twin towers of the World Trade Center collapsed after they were struck by two hijacked jetliners on September 11 killing thousands.

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People in Times Square watch the World Trade Center fire live on large screen televisions in New York on September 11, 2001. Two hijacked US commercial planes slammed into the twin towers of the World Trade Center early on Tuesday, causing both 110-story landmarks to collapse in thunderous clouds of fire and smoke.

People in Times Square watch the World Trade Center fire live on large screen televisions in New York on September 11, 2001. Two hijacked US commercial planes slammed into the twin towers of the World Trade Center early on Tuesday, causing both 110-story landmarks to collapse in thunderous clouds of fire and smoke.

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The second tower of the World Trade Center bursts into flames after being hit by a hijacked airplane in New York in this September 11, 2001. Al Qaeda leader Osama bin Laden was killed in a firefight with US forces in Pakistan on May 1, 2011, ending a nearly 10-year worldwide hunt for the mastermind of the September 11 attacks. The Brooklyn bridge is seen in the foreground.

The second tower of the World Trade Center bursts into flames after being hit by a hijacked airplane in New York in this September 11, 2001. Al Qaeda leader Osama bin Laden was killed in a firefight with US forces in Pakistan on May 1, 2011, ending a nearly 10-year worldwide hunt for the mastermind of the September 11 attacks. The Brooklyn bridge is seen in the foreground.

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A mural honoring victims of the September 11th attacks on the World Trade Center in the Queens borough of New York August 1, 2011.

A mural honoring victims of the September 11th attacks on the World Trade Center in the Queens borough of New York August 1, 2011.

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Firefighters and other guests salute as the Fire Department of New York (FDNY) Ladder Company 3 fire truck, which was partially destroyed in the September 11, 2001 attacks on the World Trade Center, is lowered into an opening in the World Trade Center site below ground level, where it will become part of the permanent installation exhibit in the 9/11 Memorial and Museum in New York July 20, 2011. The 9/11 Memorial and Museum at the World Trade Center site will open on the 10 year anniversary of the attacks on September 11, 2011.

Firefighters and other guests salute as the Fire Department of New York (FDNY) Ladder Company 3 fire truck, which was partially destroyed in the September 11, 2001 attacks on the World Trade Center, is lowered into an opening in the World Trade Center site below ground level, where it will become part of the permanent installation exhibit in the 9/11 Memorial and Museum in New York July 20, 2011. The 9/11 Memorial and Museum at the World Trade Center site will open on the 10 year anniversary of the attacks on September 11, 2011.

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An aerial view from the New York Harbor of the updated design for the 'Freedom Tower' for the World Trade Center Site. This artist rendering shows an aerial view from the New York Harbor of the updated design for the 'Freedom Tower' for the World Trade Center Site in New York which was unveiled on June 29, 2005. The centerpiece building was redesigned due to security concerns presented by the New York Police Department.

An aerial view from the New York Harbor of the updated design for the 'Freedom Tower' for the World Trade Center Site. This artist rendering shows an aerial view from the New York Harbor of the updated design for the 'Freedom Tower' for the World Trade Center Site in New York which was unveiled on June 29, 2005. The centerpiece building was redesigned due to security concerns presented by the New York Police Department.

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Paula Davis, mother of fallen US Army Private Justin Ray Davis, releases a white dove during a ceremony marking the fifth anniversary of his death, at his grave site in Arlington National Cemetery June 25, 2011. Paula Davis commemorated the fifth anniversary of Justin's death in Afghanistan with a ceremony where she also had a religious memorial service and laid a wreath at the Tomb of the Unknown Soldier in his honour. Justin had vowed to his mom he'd never forget his childhood memories of September 11 and enlisted in the US Army one week after graduating from high school. Picture taken June 25, 2011.

Paula Davis, mother of fallen US Army Private Justin Ray Davis, releases a white dove during a ceremony marking the fifth anniversary of his death, at his grave site in Arlington National Cemetery June 25, 2011. Paula Davis commemorated the fifth anniversary of Justin's death in Afghanistan with a ceremony where she also had a religious memorial service and laid a wreath at the Tomb of the Unknown Soldier in his honour. Justin had vowed to his mom he'd never forget his childhood memories of September 11 and enlisted in the US Army one week after graduating from high school. Picture taken June 25, 2011.

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Paula Davis (L), mother of fallen US Army Private Justin Ray Davis, sits alone at his grave alongside hundreds of others in Section 60 of Arlington National Cemetery June 25, 2011. Paula Davis commemorated the fifth anniversary of her 19-year-old son's death in Afghanistan on June 25 with a ceremony involving the releasing of doves, a graveside religious ceremony and the laying of a wreath at the Tomb of the Unknown Soldier. Justin had vowed to his mom he'd never forget his childhood memories of September 11 and enlisted in the US Army one week after graduating from high school. Picture taken June 25, 2011.

Paula Davis (L), mother of fallen US Army Private Justin Ray Davis, sits alone at his grave alongside hundreds of others in Section 60 of Arlington National Cemetery June 25, 2011. Paula Davis commemorated the fifth anniversary of her 19-year-old son's death in Afghanistan on June 25 with a ceremony involving the releasing of doves, a graveside religious ceremony and the laying of a wreath at the Tomb of the Unknown Soldier. Justin had vowed to his mom he'd never forget his childhood memories of September 11 and enlisted in the US Army one week after graduating from high school. Picture taken June 25, 2011.

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The memorial plaza with the North and South pool waterfalls are seen through a window in the One World Trade Center tower which is under construction as work continues on the National September 11 Memorial and Museum at the World Trade Center site in New York, July 28, 2011. The memorial is scheduled to be dedicated on September 11, 2011, the 10th anniversary of the attacks on the World Trade Center.

The memorial plaza with the North and South pool waterfalls are seen through a window in the One World Trade Center tower which is under construction as work continues on the National September 11 Memorial and Museum at the World Trade Center site in New York, July 28, 2011. The memorial is scheduled to be dedicated on September 11, 2011, the 10th anniversary of the attacks on the World Trade Center.

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New York Police Department Inspector, James Kehoe, addresses NYPD officers before a Critical Response Vehicle deployment in New York August 24, 2011. The NYPD has worked since 9/11 on a long-term project to permanently increase vigilance in Lower Manhattan and Midtown, home to prominent financial institutions and national landmarks.

New York Police Department Inspector, James Kehoe, addresses NYPD officers before a Critical Response Vehicle deployment in New York August 24, 2011. The NYPD has worked since 9/11 on a long-term project to permanently increase vigilance in Lower Manhattan and Midtown, home to prominent financial institutions and national landmarks.

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Pedestrians react to the World Trade Center collapse September 11, 2001. Two commercial airplanes crashed into the World Trade Center earlier.