Remembering Sept. 11

The Tribute in Light rises from behind 1 World Trade Center, now up to 105 floors, Wednesday, Sept. 12, 2012 in New York. Also under construction is 4 World Trade Center, center. (AP Photo/Mark Lennihan)

Police Officers of the Port Authority of New York and New Jersey carry an American flag that flew over at the World Trade Center towers during a ceremony marking the 11th anniversary of the attacks on the World Trade Center in New York, Tuesday, Sept. 11, 2012. (AP Photo/Justin Lane, Pool)

One World Trade Center, center, rises above the National September 11 Memorial and Museum at the World Trade Center, Thursday, Sept. 6, 2012 in New York. Tuesday will mark the eleventh anniversary of the terrorist attacks of Sept. 11, 2001. The World Financial Center is on the left, and Four World Trade Center is at right. (AP Photo/Mark Lennihan)

Visitors to the Flight 93 National Memorial walk along The Wall of Names, containing the names of the 40 passengers and crew who died in the crash of United Flight 93 following a memorial service in Shanksville, Pa., Tuesday, Sept. 11, 2012. (AP Photo/Gene J. Puskar)

This image provided by NASA shows a smoke plume rising from the Manhattan area after two planes crashed into the towers of the World Trade Center. This photo was taken from the International Space Station of metropolitan New York City (and other parts of New York as well as New Jersey) the morning of Sept. 11, 2001. (AP Photo/NASA, Frank Culbertson)

Marcio Rodriguez holds a United States flag as he pays respects in front of the construction site of One World Trade Center during the 11th anniversary of the Sept. 11 terrorist attacks, Tuesday, Sept. 11, 2012, in New York. (AP Photo/Julio Cortez)

Judy Parisio places a small U.S. flag on the engraved name of her niece, Frances Ann Cilente who worked and died at the World Trade Center, during the commemoration ceremony of the 11th anniversary of the Sept. 11, 2001 terrorist attacks by the North Pool at World Trade Center in New York on Tuesday, Sept. 11, 2012. (AP Photo/The New York Times, Chang W. Lee, Pool)

The Tribute in Light shines above the World Trade Center and the Statue of Liberty, left, Monday, Sept. 10, 2012, as seen from Bayonne, N.J. Tuesday will mark the eleventh anniversary of the terrorist attacks of Sept. 11, 2001. The tallest tower is 1 World Trade Center, now up to 105 floors. In the center is 4 World Trade Center. (AP Photo/Mark Lennihan)

A woman becomes emotional after reading the name of her father as friends and relatives of the victims of 9/11 gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site, Tuesday, Sept. 11, 2012, in New York. (AP Photo/Jason DeCrow)

Lt. Paul Ladouceur, with the Panama City Fire Department, helps raise a flag before the 9/11 Remembrance Ceremony in Panama City, Fla. on Tuesday, Sept. 11, 2012. (AP Photo/The News Herald/Panama City, Fla. Andrew Wardlow)

Carrie Bergonia remembers her fiancee, firefighter Joseph Ogren, who was killed in the terrorist attacks of Sept. 11, 2001, during a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Daily News, Todd Maisel, Pool)

Scott Willens, who joined the United States Army three days after the attacks on Sept. 11, 2001, pauses by the South Pool of the World Trade Center Memorial during the 11th anniversary observance, Tuesday, Sept. 11, 2012 in New York. (AP Photo/Justin Lane, Pool)

The construction of One World Trade Center, now up to 104 floors, is seen Tuesday, Sept. 11, 2012, across the Hudson River as a runner glides his hand at Liberty State Park in Jersey City, N.J., along the wall of 'Empty Sky,' New Jersey's memorial to the 749 people from the state lost during the Sept. 11 terrorist attacks on the World Trade Center. Americans paused again Tuesday to mark the 11th anniversary of the Sept. 11, 2001, terror attacks with familiar ceremonies, but also a sense that it's time to move forward after a decade of remembrance. (AP Photo/Mel Evans)

Geraldine Shaw of East Windsor, N.J. looks at the name of her son Jeffrey on a panel of the north replicating pool during a ceremony marking the 11th anniversary of the Sept. 11 terrorist attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Record of Bergen County, Chris Pedota, Pool)

A boy runs among flags flying at Pepperdine University in honor of the victims of the Sept. 11, 2001 attacks against the United States, Monday Sept. 10, 2012 in Malibu, Calif. Nearly 3,000 flags for of each person killed that day were erected. The installation of flags has been an annual event since September 2011 and will remain on display until the close of Pepperdine's 75th anniversary celebrations on Sept. 19. (AP Photo/David McNew)

The Tribute in Light shines above 1 World Trade Center, left, and 7 World Trade Center, Tuesday, Sept. 11, 2012 in New York. Today marks the 11th anniversary of the terrorist attacks of Sept. 11, 2001. (AP Photo/Mark Lennihan)

Iraq and Afghanistan war veteran U.S. Army Chaplain Capt. Kevin Peek, looks over his speech before he speaks during a ceremony to commemorate the 11th anniversary of the Sept. 11 terrorist attacks on the campus of Georgia Tech Tuesday, Sept. 11, 2012, in Atlanta. (AP Photo/David Goldman)

Visitors to the Flight 93 National Memorial in Shanksville, Pa., participate in a sunset memorial service on Monday, Sept. 10, 2012. Tuesday marks the 11th anniversary of the Sept. 11, 2001 terrorist attacks. (AP Photo/Gene J. Puskar)