Sept. 11: Remembering the tragedy 14 years ago

New York Gov. Andrew Cuomo and former Gov. George Pataki attend a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. Sept. 11 victims’ relatives marked the anniversary of the terror attacks Friday in a subdued gathering at ground zero, saying their determination to commemorate their loss publicly hadn’t dimmed even as 14 years have passed and crowds at the ceremony have thinned. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

United States Secretary of Homeland Security Jeh Johnson, front right, leads a group including Pennsylvania Governor Tom Wolf, second from left, down a path from the Flight 93 National Memorial Visitors Center, rear, after a remembrance service in Shanksville, Pa, Friday, Sept. 11, 2015. Hundreds of victims’ relatives gathered for what has become a tradition of tolling bells, moments of silence and the reading of the names of the nearly 3,000 people killed in the terror strikes at the World Trade Center, the Pentagon and a field near Shanksville, Pennsylvania. (AP Photo/Gene J. Puskar)

AP Photo/Gene J. Puskar

President Barack Obama arrives to speaks at a town hall with service members at Fort Meade, Md., Friday, Sept. 11, 2015, on the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

President Barack Obama and first lady Michelle Obama arrive on the South Lawn of the White House in Washington, Friday, Sept. 11, 2015, to observe a moment of silence to mark the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

President Barack Obama greets service members after speaking at a town hall at Fort Meade, Md., Friday, Sept. 11, 2015, on the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik)

AP Photo/Andrew Harnik

At the Pentagon Memorial a K-9 officer pauses as he looks toward the U.S. flag as it is draped on the side of the Pentagon where the building was attacked on September 11th in 2001, on the 14th anniversary of the attack, Friday Sept. 11, 2015, in Washington. (AP Photo/Jacquelyn Martin)

AP Photo/Jacquelyn Martin

Army Sgt. Edwin Morales prays during a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. With a moment of silence and somber reading of names, victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

A woman holds a photograph during a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. Sept. 11 victims’ relatives marked the anniversary of the terror attacks Friday in a subdued gathering at ground zero, saying their determination to commemorate their loss publicly hadn’t dimmed even as 14 years have passed and crowds at the ceremony have thinned. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

Two Emergency Medical Technicians pause to look at the names on the “Empty Sky” memorial to New Jersey’s victims of the Sept. 11, 2001 terrorist attacks early Friday, Sept. 11, 2015, in Jersey City, N.J. Victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero, with a moment of silence and somber reading of names. (AP Photo/Mel Evans)

AP Photo/Mel Evans

Betsy Wolk of Columbia, Md., left, rests her chin against her husband, Herb Wolk, as they visit the bench dedicated to their son-in-law, Navy Lt. Darin Pontell, Friday, Sept. 11, 2015, at the Pentagon Memorial on the 14th anniversary of the September 11th attacks. (AP Photo/Jacquelyn Martin)

AP Photo/Jacquelyn Martin

A woman holds a photograph during a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. With a moment of silence and somber reading of names, victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

From left, former mayors of New York, Rudy Giuliani, Michael Bloomberg and Mayor Bill de Blasio attend a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. Sept. 11 victims’ relatives marked the anniversary of the terror attacks Friday in a subdued gathering at ground zero, saying their determination to commemorate their loss publicly hadn’t dimmed even as 14 years have passed and crowds at the ceremony have thinned. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

AP: 943f7156-18b3-4aa0-866c-8a022667087f — A test of the Tribute in Light shines skyward over lower Manhattan, Friday, Sept. 7, 2012 in New York. The tribute will shine the night of Tuesday, Sept. 11 over New York, eleven years after the terrorist attacks. (AP Photo/Mark Lennihan)

Retired New York City firefighter Joseph McCormick visits the South Pool prior to a ceremony at the World Trade Center site in New York on Friday, Sept. 11, 2015. With a moment of silence and somber reading of names, victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero. (AP Photo/Bryan R. Smith)

AP Photo/Bryan R. Smith

Tamir Rivera, of Newark, N.J., pauses to look at the names on the "Empty Sky" memorial to New Jersey's victims of the Sept. 11, 2001 terrorist attacks early Friday, Sept. 11, 2015, in Jersey City, N.J. Victims' relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero, with a moment of silence and somber reading of names. (AP Photo/Mel Evans) — Tamir Rivera, of Newark, N.J., pauses to look at the names on the “Empty Sky” memorial to New Jersey’s victims of the Sept. 11, 2001 terrorist attacks early Friday, Sept. 11, 2015, in Jersey City, N.J. Victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero, with a moment of silence and somber reading of names. (AP Photo/Mel Evans)

A National Park Ranger's shadow falls on the Wall of Names at sunrise before a Service of Remembrance at the Flight 93 National Memorial in Shanksville, Pa, Friday, Sept. 11, 2015, as the nation marks the 14th anniversary of the Sept. 11 attacks. (AP Photo/Gene J. Puskar) — A National Park Ranger’s shadow falls on the Wall of Names at sunrise before a Service of Remembrance at the Flight 93 National Memorial in Shanksville, Pa, Friday, Sept. 11, 2015, as the nation marks the 14th anniversary of the Sept. 11 attacks. (AP Photo/Gene J. Puskar)

NATO forces take part in a memorial ceremony on the fourteenth anniversary of the 9-11 terrorist attacks on the United States at the headquarters of the International Security Assistance Force, in Kabul, Afghanistan, Friday, Sept. 11, 2015. (AP Photo/Rahmat Gul)

Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, left, and Command Sergeant Major Delbert Byers, right, carry a wreath during a memorial ceremony on the fourteenth anniversary of the 9-11 terrorist attacks on the United States at the headquarters of the International Security Assistance Force, in Kabul, Afghanistan, Friday, Sept. 11, 2015. (AP Photo/Rahmat Gul)

NATO forces stand behind a wreath during a memorial ceremony on the fourteenth anniversary of the 9-11 terrorist attacks on the United States at the headquarters of the International Security Assistance Force, in Kabul, Afghanistan, Friday, Sept. 11, 2015. (AP Photo/Rahmat Gul)

President Barack Obama and first lady Michelle Obama walk off the South Lawn of the White House in Washington, Friday, Sept. 11, 2015, after they observed the 14th anniversary of the 9/11 terrorists attacks. (AP Photo/Evan Vucci)

President Barack Obama, first lady Michelle Obama, and other, pause on the South Lawn of the White House in Washington, Friday, Sept. 11, 2015, as a bugler plays "taps" to mark the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik) — President Barack Obama, first lady Michelle Obama, and other, pause on the South Lawn of the White House in Washington, Friday, Sept. 11, 2015, as a bugler plays “taps” to mark the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik)

Betsy Wolk, with her husband Herb Wolk, of Columbia, Md., wipes her eyes as they visit the bench dedicated to their son-in-law, Navy Lt. Darin Pontell, Friday, Sept. 11, 2015, at the Pentagon Memorial on the 14th anniversary of the September 11th attacks. (AP Photo/Jacquelyn Martin)

Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, speaks during a memorial ceremony on the fourteenth anniversary of the 9-11 terrorist attacks on the United States at the headquarters of the International Security Assistance Force, in Kabul, Afghanistan, Friday, Sept. 11, 2015. (AP Photo/Rahmat Gul)

President Barack Obama and first lady Michelle Obama arrive on the South Lawn of the White House in Washington, Friday, Sept. 11, 2015, to observe a moment of silence to mark the 14th anniversary of the 9/11 attacks. (AP Photo/Andrew Harnik)

A NATO service member takes part in a memorial ceremony on the fourteenth anniversary of the 9-11 terrorist attacks on the United States at the headquarters of the International Security Assistance Force, in Kabul, Afghanistan, Friday, Sept. 11, 2015. (AP Photo/Rahmat Gul)

The names are seen on the "Empty Sky" memorial to New Jersey's victims of the Sept. 11, 2001 terrorist attacks, as One World Trade Center, center left, stands on the 14th anniversary, early Friday, Sept. 11, 2015, in Jersey City, N.J. Victims' relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero, with a moment of silence and somber reading of names. (AP Photo/Mel Evans) — The names are seen on the “Empty Sky” memorial to New Jersey’s victims of the Sept. 11, 2001 terrorist attacks, as One World Trade Center, center left, stands on the 14th anniversary, early Friday, Sept. 11, 2015, in Jersey City, N.J. Victims’ relatives began marking the 14th anniversary of Sept. 11 in a subdued gathering Friday at ground zero, with a moment of silence and somber reading of names. (AP Photo/Mel Evans)

On Sept. 11, 2001, America faced an unprecedented day of terror as 19 al-Qaida members hijacked four passenger jetliners, sending two of the planes smashing into New York's World Trade Center, one into the Pentagon and the fourth into a field in western Pennsylvania, resulting in nearly 3,000 deaths. Here, the Tribute in Light illuminates the sky behind One World Trade Center and the lower Manhattan skyline, Wednesday, Sept. 9, 2015. (AP Photo/Mark Lennihan) — On Sept. 11, 2001, America faced an unprecedented day of terror as 19 al-Qaida members hijacked four passenger jetliners, sending two of the planes smashing into New York’s World Trade Center, one into the Pentagon and the fourth into a field in western Pennsylvania, resulting in nearly 3,000 deaths. Here, the Tribute in Light illuminates the sky behind One World Trade Center and the lower Manhattan skyline, Wednesday, Sept. 9, 2015. (AP Photo/Mark Lennihan)

Members of the media get a preview of the the Flight 93 National Memorial visitors center complex in Shanksville, Pa, on Wednesday, Sept. 9, 2015. The visitors center will be formally dedicated and open to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)

Events are planned around the region to mark a National Day of Service and Remembrance on Sept. 11. (AP Photo/Nati Harnik)

A pedestrian walks Thursday, Sept. 10, 2015, past flags carrying the names of the victims of the Sept. 11 attacks in Omaha, Neb. The flags were placed at Memorial Park as a tribute to the fallen. (AP Photo/Nati Harnik)

Tom Cody of Omaha searches Thursday, Sept. 10, 2015, for the flag carrying the name of a Creighton schoolmate who died in the Sept. 11 attacks in Omaha, Neb. Flags with the names of all victims were placed at Memorial Park as a tribute to the fallen. (AP Photo/Nati Harnik)

Luminaria line the walkway to the Wall of Names at the Flight 93 National Memorial before a candlelight remembrance in Shanksville, Pa, Thursday, Sept. 10, 2015. as the nation marks the 14th anniversary of the Sept. 11 attacks. (AP Photo/Gene J. Puskar)

Andrew and Angela Garrison of Johnstown, Pa., stand under an umbrella as rain falls on the dedication of the Flight 93 National Memorial Visitor Center in Shanksville, Pa, on Thursday, Sept. 10, 2015. (AP Photo/Gene J. Puskar)

This is the view of the United Flight 93 crash site from the Flight 93 National Memorial’s new Visitors center complex in Shanksville, Pa, on Wednesday, Sept. 9, 2015. The boulder, center rear, marks them plane’s impact site. The visitors center will be formally dedicated and open to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)

AP Photo/Gene J. Puskar

This is a wall of photos of the 40 crew and passengers who perished in the crash of the United Airlines Flight 93 on display at the new Flight 93 National Memorial Visitors Center in Shanksville, Pa, on Wednesday, Sept. 9, 2015. The visitors center will be formally dedicated and open to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)

This is a wall of the names of people who lost their lives in the terrorist attacks on Sept. 11, 2001 that are on display as part of the Flight 93 National Memorial Visitors Center Complex in Shanksville, Pa, on Wednesday, Sept. 9, 2015. The visitors center will be formally dedicated and open to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)

These are some of the items that were left at the temporary memorials to United Flight 93 that are on display at the Flight 93 National Memorial Visitor Center in Shanksville, Pa, on Wednesday, Sept. 9, 2015. The visitors center will be formally dedicated and open to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)

FILE - In this 1990 file photo, New York City skyline with World Trade Center's twin towers in the center. Before the towers crumbled, before the doomed people jumped and the smoke billowed and the planes hit, the collective American memory summoned one fleeting fragment of beauty: a clear blue sky. (AP Photo, File) — FILE – In this 1990 file photo, New York City skyline with World Trade Center’s twin towers in the center. Before the towers crumbled, before the doomed people jumped and the smoke billowed and the planes hit, the collective American memory summoned one fleeting fragment of beauty: a clear blue sky. (AP Photo, File)

This Wednesday, Sept. 9, 2015 photo shows the National September 11 Memorial and Museum, center foreground, surrounded by One World Trade Center, left, the white v-shaped transportation hub, center, and 4 World Trade Center, the tall building at right, in New York. The building under construction at center right is 3 World Trade Center. Friday will mark the 14th anniversary of the Sept. 11 terrorist attacks on the United States. (AP Photo/Mark Lennihan)

FILE- In this Sept. 11, 2014 file photo, the moon appears between the beams from the Tribute in Light memorial honoring the victims of the Sept. 11 terrorist attacks as 1 World Trade Center, left, stands on the 13th anniversary as seen from Jersey City, N.J. The Tribute in Light, which first appeared on March 11, 2002, to mark the six months that had passed since the attacks. It has become a moving, quietly powerful element of the anniversaries since. (AP Photo/Julio Cortez, File)

AP Photo/Julio Cortez, File