15 years since 9/11

A photograph of the original twin towers, bottom, is shown in the window of the National September 11 Museum, while One World Trade Center, top, is reflected in the same window, Friday, Aug. 8, 2014 in New York. Next month will mark the 13th anniversary of the attacks of Sept. 11, 2001. less

A woman places a hand on the names engraved along the South reflecting pool at the Ground Zero memorial site during the dedication ceremony of the National September 11 Memorial Museum in New York on Thursday, May 15, 2014. less

Seven F/A-18 Hornets, lower left, members of the U.S. Navy's Blue Angels flight demonstration team, approach One World Trade Center, Friday, Dec. 13, 2013 in New York. The Blue Angels return to the New York area for the 11th annual Bethpage Air Show at Jones Beach on Memorial Day weekend. less

New York Mayor Bill De Blasio and his wife wife Chirlane McCray visit the memorial after the dedication ceremony at the National September 11 Memorial Museum in New York, Thursday, May 15, 2014.

FILE - In this Sept. 6, 2013, file photo, The National September 11 Museum is seen beyond the North Pool at the memorial in New York. New York City Mayor Bill de Blasio called upon the federal government Wednesday, Jan. 15, 2014, to help support the Sept. 11 museum at the World Trade Center, which is set to open this spring after years of delays but is potentially facing budget shortfalls. less

FILE - Charlotte Newman, 8, visits the National September 11 Memorial and Museum, Sunday, Sept. 8, 2013 in New York. The long-awaited museum dedicated to the victims of the Sept. 11 terror attacks will open to the public at the World Trade Center site on May 21, officials announced Monday, March 24, 2014. less

FILE - In this Nov. 13, 2013 file photo, 1 World Trade Center, center, is viewed from the 62nd floor of Four World Trade Center in New York. On the thirteenth anniversary of the attacks of Sept. 11, 2001, 1 World Trade Center will soon open to its first tenants and Four World Trade Center is open. less

Members of the general public watch a screen projection of President Barack Obama giving a speech during the dedication ceremony of the National September 11 Memorial Museum in New York on Thursday, May 15, 2014. less

The pavilion entrance to the National September 11 Memorial Museum, left, is next to one of the memorial reflecting pools, right, at the World Trade Center, Thursday, May 15, 2014 in New York. President Barack Obama is to attend the dedication of the underground museum Thursday before it opens to the public May 21. less

An ironworker walks a beam above the 24th floor of One World Trade Center, Wednesday, April 7, 2010 in New York. When completed, the tower will rise to 1776 feet (541 meters).

In this photo made Tuesday, Nov. 17, 2009, an ironworker connects steel beams of One World Trade Center in New York. Construction spending posts tiny gain in October, led by huge rise in residential activity.

The remains of Fire Dept. of New York Ladder Company 3's truck are displayed at the National Sept. 11 Memorial Museum, Wednesday, May 14, 2014, in New York. The museum is a monument to how the Sept. 11 terror attacks shaped history, from its heart-wrenching artifacts to the underground space that houses them amid the remnants of the fallen twin towers' foundations. It also reflects the complexity of crafting a public understanding of the terrorist attacks and reconceiving ground zero. less

The "Survivor Stairs," left, from The World Trader Center, are displayed at the National Sept. 11 Memorial Museum, Wednesday, May 14, 2014, in New York. The museum is a monument to how the Sept. 11 terror attacks shaped history, from its heart-wrenching artifacts to the underground space that houses them amid the remnants of the fallen twin towers' foundations. It also reflects the complexity of crafting a public understanding of the terrorist attacks and reconceiving ground zero. less

'Tribute in Light' illuminates the sky over Manhattan, Monday, Sept. 11, 2006 in New York, marking the fifth anniversary of the Sept. 11 terror attacks.

The Connecticut Remembers September 11th Memorial Ceremony at Sherwood Island State Park in Westport on 9/10/2015. Photo by Arnold Gold/New Haven Register agold@newhavenregister.com

The Connecticut Remembers September 11th Memorial Ceremony at Sherwood Island State Park in Westport on 9/10/2015. Photo by Arnold Gold/New Haven Register agold@newhavenregister.com

The Connecticut Remembers September 11th Memorial Ceremony at Sherwood Island State Park in Westport on 9/10/2015. Photo by Arnold Gold/New Haven Register agold@newhavenregister.com

(Peter Hvizdak - New Haven Register) PATH Car 745, which was in the PATH train station under the North Tower of the World Trade Center and survived the 9/11 attack, is being received at the Shore Line Trolley Museum in East Haven, Connecticut during a bagpipe parade with an escort of area police and fire departments including the New York Fire Department down River Street to the Shore Line Trolley Museum, Thursday August 6, 2015. The donated train car will be a permanent collection at the Shore Line Trolley Museum less

(Peter Hvizdak - New Haven Register) PATH Car 745, which was in the PATH train station under the North Tower of the World Trade Center and survived the 9/11 attack, is being received at the Shore Line Trolley Museum in East Haven, Connecticut during a bagpipe parade with an escort of area police and fire departments including the New York Fire Department down River Street to the Shore Line Trolley Museum, Thursday August 6, 2015. The donated train car will be a permanent collection at the Shore Line Trolley Museum less

(Peter Hvizdak - New Haven Register) PATH Car 745, which was in the PATH subway station under the North Tower of the World Trade Center and survived the 9/11 terrorist attack, has been restored at the Shore Line Trolley Museum in East Haven, Connecticut. The PATH Car 745 will be open to the public after a dedication ceremony Sunday, September 11, 2016 at the museum.The subway car, in the permanent collection at the Shore Line Trolley Museum, is one of two that were found in a cast iron tunnel which enabled them to withstand the pressures from the collapsing World Trade Center building above. On the morning of September 11, 2001, the car was sent to the World Trade Center to pick up passengers, but none were found inside when the car was discovered during excavation. The Shore Line Trolley museum is the oldest operating trolley museum in the United States. less

The 9/11 Memorial at the Middlefield Volunteer Fire Company was dedicated in 2011 at the firehouse on Jackson Hill Road. (Catherine Avalone - The Middletown Press)

South District Fire Department 9/11 Remembrance and Memorial Garden dedication Wednesday morning in Middletown. The 8-foot beam, the centerpiece of the Memorial Garden is from the North Tower. (Catherine Avalone - The Middletown Press) less

Residents walk around 8-foot beam from the North Tower of the World Trade Center at the South District Fire 9/11 Remembrance and Memorial Garden dedication Wednesday morning in Middletown. (Catherine Avalone - The Middletown Press) less

PENTAGON BUILDING RESCUE WORKERS BOMBING AFTERMATH TERRORISM FIREFIGHTERS ROOF LARGE AMERICAN FLAG CRIME TERRORIST ATTACK

A woman looks at missing person posters of victims of the September 11 terrorist attacks on the World Trade Center in New York City on Sept. 14, 2001.

CRIME TERRORISM WORLD TRADE CENTER TWIN TOWERS TERRORIST ATTACK SECOND PLANE BUILDING JET PASSENGER AIRPLANE APPROACHING TOWER TWO JETLINER ACTUAL SECOND PLANE SOUTH TOWER HIJACKING

THIRD OF A SERIES OF FOUR PICTURES---Smoke billows from one of the towers of the World Trade Center and flames and debris explode from the second tower, Tuesday, Sept. 11, 2001. In one of the most horrifying attacks ever against the United States, terrorists crashed two airliners into the World Trade Center in a deadly series of blows that brought down the twin 110-story towers. less

Fire and smoke billows from the north tower of New York's World Trade Center Tuesday Sept. 11, 2001 after terrorists crashed two hijacked airliners into the World Trade Center and brought down the twin 110-story towers. less

(Peter Hvizdak - New Haven Register) PATH Car 745, which was in the PATH train station under the North Tower of the World Trade Center and survived the 9/11 attack, is being received at the Shore Line Trolley Museum in East Haven, Connecticut during a bagpipe parade with an escort of area police and fire departments including the New York Fire Department down River Street to the Shore Line Trolley Museum, Thursday August 6, 2015. The donated train car will be a permanent collection at the Shore Line Trolley Museum less