A New York City firefighter stands in front of flowers placed by the reflecting pool at the eighth anniversary remembrance of the Sept. 11 terrorist attacks on New York and Washington Friday, Sept. 11, 2009, in New York.
Mourners pay their respects during a ceremony at the World Trade Center to commemorate the eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
Vice President Joe Biden, left, his wife Jill Biden, center, and New York City Mayor Michael Bloomberg walk to a reflecting pool at the World Trade Center site on the eighth anniversary of the Sept. 11 terrorist attacks in New York, Friday, Sept. 11, 2009.
New York City Mayor Michael Bloomberg speaks at a ceremony at the World Trade Center to commemorate the eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
Vice President Joe Biden speaks as friends and relatives of the victims of the Sept. 11, 2001, attacks gather for a commemoration ceremony at Zuccotti Park, adjacent to Ground Zero, on the eighth anniversary of the terrorist attacks on the World Trade Center, Friday, Sept. 11, 2009, in New York.
Marta Waisman, right, from New York, holds a photo of her daughter who died in the Sept. 11, 2001, attack on the World Trade Center, as she attends ceremonies marking the eight anniversary, in New York on Friday, Sept. 11, 2009.
A man kneels while holding a photograph during a moment of silence as friends and relatives of the victims of the Sept. 11, 2001, attacks gather for a commemoration ceremony at Zuccotti Park, adjacent to Ground Zero, on the eighth anniversary of the terrorist attacks on the World Trade Center, Friday, Sept. 11, 2009, in New York.
Pamela Smith, right, from London, pays her respects during the first ringing of the bell during a ceremony marking the eighth anniversary of the attacks on the World Trade Center, Friday, Sept. 11, 2009, in New York.
A firefighter and a police officer from New York hold an American flag as they pay their respects during a ceremony at the World Trade Center to commemorate eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
A woman holds a photograph as friends and relatives of the victims of the Sept. 11, 2001, attacks gather for a commemoration ceremony at Zuccotti Park, adjacent to Ground Zero, on the eighth anniversary of the terrorist attacks on the World Trade Center, Friday, Sept. 11, 2009, in New York.
Paul Isaac of Brooklyn, N.Y., holds an American flag outside the anniversary ceremony of the attacks on the World Trade Center, Friday, Sept. 11, 2009, in New York.
Chundera Epps, sister of victim Christopher Epps, holds a sign as family members of victims stand in the rain to pay their respects during a ceremony at the World Trade Center to commemorate the eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
The World Trade Center flag is folded as friends and relatives of the victims of the Sept. 11, 2001, attacks gather for a commemoration ceremony at Zuccotti Park, adjacent to Ground Zero, on the eighth anniversary of the terrorist attacks on the World Trade Center, Sept. 11, 2009, in New York. The flag was originally in the plaza area near Church Street and was tangled in a light pole and found by the NYPD the next day.
Diane Massaroli, of Staten Island, holds a picture of her late husband, Michael Massaroli, who worked at Cantor Fitzgerald in the World Trade Center, as his name is read during a ceremony at Ground Zero, to commemorate the eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
People file past the reflecting pool in Ground Zero during the the eighth anniversary commemoration ceremony of the Sept. 11, 2001, World Trade Center attack, in New York, Friday Sept. 11, 2009.
A police officer stands by as family members of victims of the Sept. 11 attacks on the World Trade Center pay their respects at the reflecting pool in Ground Zero during a ceremony commemorating the eighth anniversary of the attacks Friday Sept. 11, 2009, in New York.
Mourners gather around a reflecting pool during a memorial ceremony at the World Trade Center construction site, Friday, Sept. 11, 2009, in New York.
Roses thrown by mourners float in a reflecting pool at the World Trade Center site in New York during a ceremony to commemorate the eighth anniversary of the Sept. 11 terrorist attacks Friday, Sept. 11, 2009, in New York.
Mourners of Sept. 11 victims place flowers in the reflecting pool at Ground Zero during the eighth anniversary commemoration ceremony, in New York, Friday Sept. 11, 2009.
A member of the Fire Department of New York salutes at the reflecting pool during the eighth anniversary remembrance of the Sept. 11 terrorist attacks on New York and Washington, Friday, Sept. 11, 2009, in New York.