Ground zero: Starting over (Photo 1 of 49) - Pictures

Photos by Space Imaging’s IKONOS satellite showing the World Trade Center complex in Manhattan, New York, collected on June 30, 2011 showing the 110-stories twin towers; on September 15, 2001 showing the remains of the 1,350-foot (411.48-meter) twin towers of the World Trade Center, and the debris and dust that have settled in Ground Zero, four days after the terrorist attacks; and June 8, 2002, showing the progress in the reclamation of Ground Zero where the twin towers of the World Trade Center once stood.

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A man stands in the rubble, and calls out asking if anyone needs help, after the collapse of the first World Trade Center Tower 11 September, 2001, in New York. Two hijacked planes crashed into the twin towers causing the collapse of both. AFP PHOTO Doug KANTER Library Tag 09122001 NATIONAL AMERICA UNDER ATTACK, SEPTEMBER 11, 2001 NEW YORK Library Tag 01182011 G section

A man stood in the rubble and called out, asking if anyone needed help, after the collapse of the first World Trade Center Tower on Sept. 11, 2001. More than 2,700 people were killed when Al Qaeda terrorists hijacked US passenger jets and flew them into the twin towers in New York.

Doug Kanter/AFP |

This photo released by the New York City Office of Emergency Management 17 September, 2001, shows an aerial view of the World Trade Center 16 September, 2001. The twin towers of the center were destroyed by terrorist crashing commercial jet planes into the structures. AFP PHOTO/POOL/NEW YORK CITY OFFICE OF EMERGENCY MANAGEMENT Library Tag 09182001 NATIONAL AMERICA UNDER ATTACK

An aerial view of the wreckage at the World Trade Center on Sept. 16, 2001.

AFP/POOL/NEW YORK CITY OFFICE OF EMERGENCY MANAGEMENT |

Rescue workers pray with a priest over human remains that were removed from the rubble of the World Trade Centers in New York, Thursday, Sept. 27, 2001. Behind them on the stretcher is another body that was pulled from the site. (AP Photo/Ed Betz)

Rescue workers prayed with a priest over human remains that had been removed from the rubble of the World Trade Center towers in New York on Sept. 27, 2001. Behind them on the stretcher was another body that had been pulled from the site.

Ed Betz/Associated Press |

Workers pull down the remaining South wall of Tower Two of the World Trade Center with cables attached to cranes in New York September 25, 2001. Two hijacked commercial airliners were deliberately crashed into the twin towers bringing them crashing to the ground September 11. REUTERS/Jim Bourg Library Tag 09262001 NATIONAL AMERICA UNDER ATTACK

Workers pulled down the remaining south wall of Tower Two of the World Trade Center with cables attached to cranes on Sept. 25, 2001.

Jim Bourg/Reuters |

Workers climb over the remains of the World Trade Center complex in lower Manhattan, New York, Friday, Sept. 28, 2001. Workers continue clearing debris from the site of the September 11 terrorist attack on the World Trade Center towers. (AP Photo/Shawn Baldwin) -- Library Tag 09292001 National-Foreign AMERICA UNDER ATTACK

Workers climbed over the remains of the World Trade Center complex in lower Manhattan, New York, on Sept. 28, 2001.

Shawn Baldwin/Associated Press |

The Massachusetts National Guard Unit’s lead photographer , Sean Patrick Jennings, creates a record of the altered landscape at Ground Zero on October 8, 2001.

The Massachusetts National Guard Unit’s lead photographer , Sean Patrick Jennings, created a record of the altered landscape at Ground Zero on Oct. 8, 2001.

Dominic Chavez/The Boston Globe |

Firefighters salute as remains draped in an American flag are removed from the rubble of the World Trade Center in New York, Tuesday, Oct. 9, 2001. Mayor Rudolph Giuliani ordered a 15 percent cut in spending by most city departments Tuesday, predicting the World Trade Center attack will cost $1 billion in revenue this fiscal year and 100,000 jobs. (AP Photo/Ed Betz)

Firefighters saluted as remains draped in an American flag were removed from the rubble of the World Trade Center on Oct. 9, 2001.

Ed Betz/Associated Press |

Firefighters make their way over the ruins of the World Trade Center through clouds of smoke as work continues at ground zero Thursday, Oct. 11, 2001, in New York, one month after the terrorist attacks on the Trade Center. (AP Photo/Stan Honda, pool)

Firefighters made their way over the ruins of the World Trade Center through clouds of smoke as work continued at ground zero on Oct. 11, 2001, one month after the terrorist attacks.

Stan Honda/Associated Press |

Sunlight filters into the still smoldering site of the World Trade Center attack highlighting the remains of Tower Two as workers riding in a basket suspended from a giant crane hover above, Saturday, Oct. 27, 2001, in New York. The round-the-clock recovery effort at the disaster site will come to a halt Sunday for a service to remember more than 4,000 victims of the Sept. 11 terrorist attacks. (AP Photo/William C. Lopez)NATIONAL AMERICA UNDER ATTACK - WORLD TRADE CENTER, NY

Sunlight filtered into the still smoldering remains of Tower Two as workers riding in a basket suspended from a giant crane hovered above on Oct. 27, 2001.

William C. Lopez/Associated Press |

Work continues at the site of the World Trade Center disaster as a new day begins at sunrise in New York Saturday, Oct. 27, 2001. (AP Photo/David Karp) Library Tag 10282001 NATIONAL AMERICA UNDER ATTACK - NEW YORK

Work continued at the site of the World Trade Center disaster at sunrise on Oct. 27, 2001.

David Karp/Associated Press |

Vehicles that were destroyed are scattered about Wednesday, Nov. 14, 2001, on a buckled parking garage level underneath the World Trade Center in New York during a tour of the complex destroyed in the Sept.ll terrorist attack (AP Photo/Newark Star Ledger-John O'Boyle)MANDATORY CREDIT Library Tag 11162001 NATIONAL

Vehicles were found scattered about on Nov. 14, 2001, on a buckled parking garage level underneath the World Trade Center in New York.

John O'Boyle/Newark Star Ledger via Associated Press |

THIRD IN A SEQUENCE OF FOUR, XLL 104-107--A major section of Building Six collapses as demolition of the remains of The World Trade Center disaster site continues, Tuesday, Dec.18, 2001, in New York. (AP Photo/ Louis Lanzano) Library Tag 12192001 NATIONAL

A major section of Building 6 collapsed as demolition of the remaining piees of the World Trade Center continued on Dec. 18, 2001.

Louis Lanzano/Associated Press |

Firefighters rally at ground zero at the disaster site of New York's World Trade Center, Friday Nov. 2, 2001. Firefighters protested a plan to scale back the number of fire and police personnel searching for remains at the World Trade Center site. Some firefighters, who were among several hundred protesters, tangled with police who initially refused to allow them into the sealed-off area around the collapsed towers. (AP Photo/Stuart Ramson) -- Sign

Firefighters rallied at ground zero on Nov. 2, 2001. Firefighters protested a plan to scale back the number of fire and police personnel searching for remains at the World Trade Center site.

Stuart Ramson/Associated Press |

Recovery and cleanup efforts continue at New York's World Trade Center in this Dec. 22, 2001 file photo. The Empire State Building is visible at top center. (AP Photo/FILE/Louis Lanzano)

Recovery and cleanup efforts continued on Dec. 22, 2001, after the last standing walls of the twin towers were gone. The Empire State Building is visible at top center.

Louis Lanzano/Associated Press |

Recovery workers look on as heavy machinery helps remove debris at the World Trade Center disaster site in New York, Saturday morning, January 12, 2002. (AP Photo/Robert Spencer) AMERICA UNDER ATTACK - WORLD TRADE CENTER DEBRIS

Recovery workers looked on as heavy machinery helped remove debris on Jan. 12, 2002.

Robert Spencer/Associated Press |

Workers unfold an American flag Saturday, May, 25, 2002, on top of the last standing beam at the site of the World Trade Center disaster in New York. The beam will removed from the site in a ceremony on May 30, officially ending the recovery effort. (AP Photo/Stephen Chernin) -- Library Tag 05262002 National-Foreign

Workers unfolded an American flag on May, 25, 2002, on top of the last standing beam at the site of the World Trade Center disaster in New York a few days before the official end of the recovery effort.

Stephen Chernin/Associated Press |

The former site of the World Trade Center, known as ground zero, was seen from the southeast in this photo taken on June 4, 2002.

Peter Morgan/Reuters |

ARCHIVED TO THE BOSTON GLOBE LIBRARY SEPT. 19, 2002 Atr ground zero of the fallen World Trade Center towers, a lone police officer sits amid the rubble during a ceremony marking the one year anniversary of the attacks in New York on Wednesday, Sept. 11, 2002. (AP Photo/Amy Sancetta/POOL)

At ground zero, a lone police officer sat amid the rubble during a ceremony marking the one year anniversary of the attacks on Sept. 11, 2002.

Amy Sancetta/Associated Press |

Lights illuminated ground zero as the sun set over the Manhattan on Sept. 6, 2002.

Vincent Laforet/The New York Times |

Pixs of the original wall of the World Trade Center, pixs show steel old cement and the new resh cement.

The original slurry wall of the World Trade Center, showing steel old cement and the new resh cement, was visible on Nov. 19, 2003.

Angel Franco/The New York Times |

7/4/04/NYC.NY/Tower/ The cornerstone of the Freedom Tower, on the Location of the World trade Center, was laid today by workers- Here, after the ceremony , the stone was laid permanently(at 12:05)(credit james Estrin / The New York Times)

Workers laid the cornerstone of the Freedom Tower on the location of the World Trade Center on July 4, 2004.

James Estrin / The New York Times |

An aerial view showing the footprint of the World Trade Center site in lower Manhattan, with the Hudson River, left, on Friday Sept. 10, 2004 one day before the third anniversary of the terrorist attacks in the United States. (AP Photo/Stuart Ramson) ORG XMIT: XSR204

An aerial view showed the footprint of the World Trade Center site in lower Manhattan on Sept. 10, 2004.

Stuart Ramson/Associated Press |

NEW YORK - MAY 5: People look out at the former site of the World Trade Center May 5, 2005 in New York City. The construction of the Freedom Tower has run into numerous obstacles of late, including the resignation of a top official in charge of the reconstruction project, concerns about the future projects' vulnerability to terrorists and accusations that New York City Mayor Michael Bloomberg has been distracted by the building of a new stadium on Manhattan's West Side. (Photo by Spencer Platt/Getty Images)

People looked out at the former site of the World Trade Center on May 5, 2005. The construction of the Freedom Tower on the site had run into numerous obstacles.

Spencer Platt/Getty Images |

Seen is a view on the east side of the World Trade Center bathtub, showing the old inbound Hudson & Manhattan Railroad tunnels which also served as truck ramps for the WTC, on July 16, 2005.

On the east side of the World Trade Center bathtub, the old inbound Hudson & Manhattan Railroad tunnels, which also served as truck ramps for the World Trade Center, were visible on July 16, 2005.

Andrea Mohin/The New York Times |

A worker dismantles the T-shaped steel beam, that gained fame as the ground zero cross, at ground zero of the World Trade Center site in New York, Thursday Oct. 5, 2006. The cross is temporarily leaving the World Trade Center site, the scene it has overlooked since being found by a construction worker amid smoking ruins two weeks after the Sept. 11 attacks. The artifact's new home will be three blocks north at the exterior wall of St. Peter's Church. (AP Photos/Bebeto Matthews) Library Tag 10062006 National/Foreign

A worker dismantled the T-shaped steel beam, which gained fame as the ground zero cross, on Oct. 5, 2006. The cross was found by a construction worker amid smoking ruins two weeks after the Sept. 11 attacks.

Bebeto Matthews/Associated Press |

Construction workers watch from a ramp as others raise the first of three 25-ton steel columns into position before it is bolted into place at ground zero in New York, Tuesday, Dec. 19, 2006, a milestone in efforts to build a new office tower to replace the World Trade Center. (AP Photo/Kathy Willens) Library Tag 12202006 National Foreign

Construction workers watched from a ramp as others raised the first of three 25-ton steel columns into position before it was bolted into place on Dec. 19, 2006, a milestone in efforts to build a new office tower to replace the World Trade Center.

Kathy Willens/Associated Press |

Construction continues on the Freedom Tower foundations at the World Trade Center site on Friday, June 20, 2008, in New York. In addition to the tower, three office towers, a transportation hub and the Sept. 11 memorial are under construction. (AP Photo/Mark Lennihan)

Construction continued on the Freedom Tower foundations at the World Trade Center site on June 20, 2008.

Mark Lennihan/Associated Press |

The galleria at the World Trade Center, an east-west underground connecting passageway between the Transportation Hub and Battery Park City, has been exposed to daylight for months since its construction. It will soon be roofed over and all of these luminous views -- pictured on 11/18/08 -- will be lost. The arches are made of steel and covered in fireproof paint.

The galleria at the World Trade Center, an east-west underground connecting passageway between the Transportation Hub and Battery Park City, was still exposed to daylight during construction on Nov. 18, 2008.

David W. Dunlap/The New York Times |

Friends and relatives of the victims of the Sept. 11, 2001 attacks toss flowers into the Reflecting Pool during a ceremony at Ground Zero, the 16-acre World Trade Center site, in New York, U.S., on Thursday, Sept. 11, 2008. Today marks the seventh anniversary of attacks that killed almost 3,000 people when terrorists hijacked passenger jets and aimed them at New York's World Trade Center. Photographer: Andrew Harrer/Bloomberg News

Friends and relatives of the victims of the Sept. 11 attacks tossed flowers into the Reflecting Pool during a ceremony at ground zero on Sept. 11, 2008.

Andrew Harrer/BLOOMBERG NEWS |

BIMG_1166.JPG The survivors staircase at the World Trade Center was moved this morning to its permanent spot. BIMG_1171.JPG The ramp, which has been the portal to construction crews and other activities will be taken down piece by piece starting this weekend. The survivors' staircase at the World Trade Center was moved this morning to it's permanent spot. Stairs at the World Trade Center site are moved. WTC Site Gate 7, Liberty Street just west of Greenwich Street.

The survivors’ staircase at the World Trade Center was moved to its permanent spot on Dec. 11, 2008. The Vessey Street staircase was used by many to evacuate the towers on Sept. 11, 2001.

Ozier Muhammad/The New York Times |

The photograph shows that the sunken pool, which marks the site of 1 World Trade Center, is now almost entirely framed out in structural steel, except for its southwest corner. Along the walls now defined by a network of columns and beams, waterfalls will descend from plaza level to the pool surface. At the center of the main pool and also visible in this picture will be a secondary depression, or void, into which the water will cascade out of sight. Near the top of the picture, toward the left, one can see a wide swath of parallel diagonal lines. This marks the location of Fulton Street, under which a major east-west underground galleria will extend, linking the World Trade Center Transportation Hub with Battery Park City. Near the bottom of the picture is a bright red trailer or shed, almost perfectly cubic. To the right are two concrete forms looking like small ziggurats. These were footings for the 460-ramp that served the site since the early days of recovery. The photo illustrates why it was so important to dismantle the ramp recently, in order to allow construction of the memorial to proceed. credit: Port Authority of New York and New Jersey At the lower right corner of the picture can be seen the survivors stairway, the last aboveground relic of the trade center, which stood on Vesey Street until last year. This structure will be incorporated into a staircase of the underground museum, although visitors will not be allowed to walk on it. Published 01-28-2009: Photo by Port Authority of New York and New Jersey

The sunken pool, which marks the site of One World Trade Center, was almost entirely framed out in structural steel, except for its southwest corner in a January 2009 photo.

Port Authority of New York and New Jersey |

Workers and officials watch as the historic Last Column, (covered in white) the final steel beam to be removed from the World Trade Center (WTC) site is returned August 24, 2009 for permanent installation in the 9/11 Memorial Museum at the WTC site in New York. The 36-foot high Last Column was covered in tributes from workers, rescue personnel and family members before the column was removed from the site, marking the end of the recovery efforts in May 2002. The Memorial Museum will be built around the column, here being raised from a flat bed truck before it is lowered into place. AFP PHOTO/Stan Honda (Photo credit should read STAN HONDA/AFP/Getty Images) Library Tag 08252009 National/Foreign

Workers and officials watched as the historic Last Column (covered in white), the final steel beam from the World Trade Center site, was returned on Aug. 24, 2009, for permanent installation in the 9/11 Memorial Museum.

Stan Honda/AFP/Getty Images |

Ironworker Eon Mathieson prepares to connect a steel beam on the fourth floor of One World Trade Center, Tuesday, Nov. 17, 2009 in New York. The tower, also referred to as Freedom Tower, is now about 160 feet (49 meters) above ground level. (AP Photo/Mark Lennihan)

Ironworker Eon Mathieson prepared to connect a steel beam on the fourth floor of One World Trade Center on Nov. 17, 2009. The Port Authority changed the name from Freedom Tower to One World Trade Center in 2009.

Mark Lennihan/Associated Press |

NEW YORK - MARCH 26: People watch out the window as construction continues at The World Trade Center site on March 26, 2010 in New York City. A new development agreement announced yesterday will have four office towers eventually constructed after a 16-month stalemate over building at the site. (Photo by Mario Tama/Getty Images) NYTCREDIT: Mario Tama/Getty Images

People watched out the window as construction continued at the World Trade Center site on March 26, 2010, in New York City. A new development agreement was announced after a 16-month stalemate over building at the site.

Mario Tama/Getty Images |

30099695A SHIP 7/14/10 New York, NY, A 19th Century ship that has been buried for over a hundred years was found yesterday during construction at the World Trade Center site. Archeologists working to uncover, measure and collect artifacts were working quickly before the ship will be buried again. Credit: Fred R. Conrad/The New York Times NYTCREDIT: Fred R. Conrad/The New York Times Published 07-15-2010: A. Michael Pappalardo, an archaeologist with the firm AKRF, measured the length of the ship's hull. (Fred R. Conrad/The New York Times)

A 19th-century ship that has been buried for over 100 years was found on July 14, 2010, during construction at the former World Trade Center site. Archeologists worked to uncover, measure, and collect artifacts quickly before the ship would be buried again.

Fred R. Conrad/The New York Times |

30101520A WTC 8/27/10, New York, NY, Photos of the World Trade Center construction site for Metropolitan Section cover story on Sept. 5th. Memorial Pool. Credit: Fred R. Conrad/The New York Times NYTCREDIT: Fred R. Conrad/The New York Times

Work in the memorial pools continued on Aug. 27, 2010.

Fred R. Conrad/The New York Times |

Job site crews poured concrete at One World Trade Center in September 2010.

Fred R. Conrad/The New York Times |

30101520A WTC 8/27/10, New York, NY, Photos of the World Trade Center construction site for Metropolitan Section cover story on Sept. 5th. #1WTC looking up at the base of one of the cranes. Credit: Fred R. Conrad/The New York Times NYTCREDIT: Fred R. Conrad/The New York Times

Looking up at the base of one of the cranes at the One World Trade Center on Aug, 27 , 2010.

Fred R. Conrad/The New York Times |

NEW YORK - SEPTEMBER 07: Construction continues at the World Trade Center site with memorial footprints of the twin towers visible September 7, 2010 in New York City. Officials provided an update on the rebuilding efforts as the ninth anniversary of the 9/11 terror attacks approaches. (Photo by Mario Tama/Getty Images) NYTCREDIT: Mario Tama/Getty Images

Construction continued at the World Trade Center site with the memorial footprints of the twin towers visible on Sept. 7, 2010.

Mario Tama/Getty Images |

NEW YORK - SEPTEMBER 11: A trumpeter plays Taps on Ground Zero to signify the end of the annual commemoration of the 9/11 terror attacks September 11, 2010 in New York City. Thousands gathered to pay solemn homage on the ninth anniversary of the terrorist attacks that killed nearly 3,000 people on September 11, 2001. (Photo by Chris Hondros/Getty Images) Library Tag 09122010 National/Foreign

A trumpeter played Taps at ground zero at the end of the ninth annual commemoration ceremony on Sept. 11, 2010.

Chris Hondros/Getty Images |

NEW YORK, NY - JULY 08: People stand on the 20th floor restaurant terrace of the World Center Hotel as construction continues on One World Trade Center (TOP C) and the National September 11 Memorial & Museum at the World Trade Center site on July 8, 2011 in New York City. The memorial features two reflecting pools on the footprints of the twin towers. The memorial is scheduled to be dedicated on September 11, 2011, the tenth anniversary of the World Trade Center terrorist attacks. (Photo by Mario Tama/Getty Images) NYTCREDIT: Mario Tama/Getty Images

People stood on the 20th floor restaurant terrace of the World Center Hotel as construction continued on One World Trade Center and the National September 11 Memorial & Museum on July 8, 2011. The memorial features two reflecting pools on the footprints of the twin towers.

Mario Tama/Getty Images |

(May 11, 2011) New York City-The base of One World Trade Center was supposed to be covered by a type of glass that the builders have not been able to fabricate. Photo by Todd Heisler/The New York Times NYTCREDIT: Todd Heisler/The New York Times

Clouds were reflected in the glass of One World Trade Center on May 11, 2011. The base of the tower was supposed to be covered by prismatic glass panels to cover the bomb-proof concrete, but plans were scrapped.

Todd Heisler/The New York Times |

Tourists look on as the Fire Department of New York's (FDNY) Ladder Company 3 fire truck, which was responsible for evacuating civilians from the North Tower of the World Trade Center on September 11, 2001 is lowered 70 feet by crane in a ceremony July 20, 2011 to its exhibition space of the National September 11 Memorial Museum, which will open in September 2012. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)

Tourists looked on as the Fire Department of New York's Ladder Company 3 fire truck, which was responsible for evacuating civilians from the North Tower of the World Trade Center on Sept. 11, 2001, was lowered 70 feet by crane to its exhibition space of the National September 11 Memorial Museum on July 20, 2011.

Timothy A. Clary/AFP/Getty Images |

Construction workers lower the September 11 cross by crane into a subterranean section of the National September 11 Memorial and Museum on July 23, 2011 in New York City. The cross is an intersecting steel beam discovered in the World Trade Center rubble which served as symbol of spiritual recovery in the aftermath of 9/11. AFP PHOTO / POOL / Mark LENNIHAN (Photo credit should read POOL/AFP/Getty Images)

Construction workers lowered the Sept. 11 cross by crane into a subterranean section of the National September 11 Memorial and Museum on July 23, 2011. The cross is an intersecting steel beam discovered in the World Trade Center rubble which served as symbol of spiritual recovery in the aftermath of 9/11.

Mark Lennihan/AFP/Getty Images |

NEW YORK, NY - JUNE 30: The north pool waterfall is tested as work continues on the National September 11 Memorial & Museum at the World Trade Center site on June 30, 2011 in New York City. The memorial features two reflecting pools on the footprints of the twin towers. The memorial is scheduled to be dedicated on September 11, 2011, the tenth anniversary of the World Trade Center terrorist attacks. (Photo by Mario Tama/Getty Images) NYTCREDIT: Mario Tama/Getty Images

The north pool waterfall was tested as work continued on the National September 11 Memorial & Museum at the World Trade Center site on June 30, 2011. The memorial features two reflecting pools on the footprints of the twin towers. The memorial is scheduled to be dedicated on Sept. 11, 2011, the 10th anniversary of the World Trade Center terrorist attacks.

Mario Tama/Getty Images |

Two steel beams known as the tridents from the original World Trade Center tower are seen inside the National September 11 Museum as its construction continues at the World Trade Center site in New York, July 28, 2011. The memorial plaza and waterfall pools at the site are scheduled to be dedicated on September 11, 2011, the 10th anniversary of the attacks on the World Trade Center with the Museum opening later. REUTERS/Mike Segar (UNITED STATES - Tags: DISASTER SOCIETY)

Two steel beams known as the tridents from the original World Trade Center tower were visible inside the National September 11 Museum during construction on July 28, 2011.

Mike Segar/Reuters |

NEW YORK, NY - AUGUST 12: Construction continues on One World Trade Center (TALLEST BUILDING AT RIGHT) as the memorial footprints of the twin towers are seen (C) on August 12, 2011 in New York City. Upon completion, One World Trade Center will be New York's tallest skyscraper, topping out at a symbolic 1,776 feet, with 3 million square feet of office space. More than 2,700 people were killed when al-Qaeda terrorists hijacked U.S. passenger jets and flew them into the twin towers of the World Trade Center on September 11, 2001. Nearly ten years after the crippling attacks on Lower Manhattan, business, tourism and new construction like One World Trade Center have rejuvenated the formerly devastated cityscape.(Photo by Mario Tama/Getty Images) NYTCREDIT: Mario Tama/Getty Images

The memorial footprints of the twin towers were visible on Aug. 12, 2011, as construction continued.

Getty Images |

The under-construction One World Trade Center (C) stands tall on New York's Lower Manhattan skyline, behind the Statue of Liberty, as seen from Bayonne, New Jersey, August 6, 2011. New York will mark the 10th anniversary of the attack on the World Trade Center with ceremonies on September 11. REUTERS/Gary Hershorn (UNITED STATES - Tags: CITYSCAPE DISASTER) NYTCREDIT: Gary Hershorn/Reuters

One World Trade Center stood tall during construction on New York's Lower Manhattan skyline, behind the Statue of Liberty, as seen from Bayonne, N.J., on Aug. 6, 2011.

REUTERS |