Sept. 11, 2010

The Tribute in Light rises above the construction cranes on One World Trade Center, and the lower New York skyline, Saturday, Sept. 11, 2010. In an annual tradition, the two bright blue beams of light rise from lower Manhattan in memory of the fallen twin towers.

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The World Trade Center site is shown, Saturday, Sept. 11, 2010, on the ninth anniversary of the attacks of 2001.

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Firefighters surround a reflecting pool in the middle of Ground Zero before the annual memorial service on Saturday, Sept. 11, 2010, in New York.

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Americans walk amongst flags erected by students and staff from Pepperdine University in Malibu, Calif., who placed nearly 3,000 flags in the ground to honor the victims of the Sept. 11, 2001, terrorist attacks.

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Honor guard practice a tribute with a flag at Ground Zero before the annual memorial service Sept. 11, 2010, in New York.

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A policeman in an honor guard is seen at the reflecting pool in the middle of Ground Zero before the annual memorial service Sept. 11, 2010, in New York.

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A man adjacent to the site of the Sept. 11 terrorist attacks blows a shofar with Israeli and American flags attached, Saturday, Sept. 11, 2010.

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From left: New York Gov. David Paterson, Vice President Joe Biden, his wife Jill Biden, New York Mayor Michael Bloomberg and New Jersey Gov. Chris Christie drop flowers into a reflecting pool at a memorial service commemorating the ninth anniversary of the Sept. 11, 2001, terrorist attacks Saturday, Sept. 11, 2010 in New York.

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Vice President Joe Biden meets with a woman who lost a family member in the Sept. 11 terrorist attacks on the World Trade Center, during a ceremony commemorating the ninth anniversary Saturday, Sept. 11, 2010, in New York.

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Flowers float in a reflecting pool in memory of victims of the 9/11 terrorist attacks during the annual memorial service in New York, Saturday, Sept. 11, 2010.

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Flowers are dropped in a reflecting pool at Ground Zero Saturday, Sept. 11, 2010.

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A firefighter drops a flower into the reflecting pool at Ground Zero during a 9/11 memorial ceremony on Sept. 11, 2010, in New York.

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Rosa Notaro, left, and Anna Sereno, both of Brooklyn, hold photos of their children Daniella Notaro and Arturo Angelo Sereno - victims of the Sept. 11, 2001 attacks - at a commemoration ceremony at Zuccotti Park, adjacent to Ground Zero, on the ninth anniversary of the terrorist attacks on the World Trade Center, Saturday, Sept. 11, 2010, in New York.

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Alyson Low, of Fayetteville, Ark., holds a photo of her sister Sara Low, 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 ninth anniversary of the terrorist attacks on the World Trade Center, Saturday, Sept. 11, 2010, in New York.

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Seven-year-old Maya Michelle Podejma, who lost her Uncle Lukasz Milewski on 9/11, reads the names of the victims at Ground Zero Sept. 11, 2010, in New York.

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Members of the U.S. Army 800th Military Police Brigade look out over Ground Zero in lower Manhattan on Sept. 11, 2010, in New York.

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Notes and flowers from family members of 9/11 victims are seen at the reflecting pool at Ground Zero Saturday, Sept. 11, 2010, in New York.

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A mourner weeps as she leaves Ground Zero during the memorial service Saturday, Sept. 11, 2010, in New York.

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A woman prays at the reflecting pool at the World Trade Center site on Saturday, Sept. 11, 2010, in New York, during the ninth anniversary commemoration ceremony of the 9/11 attacks.

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An honor guard played trumpet as family members of 9/11 victims visited the reflecting pool, Saturday, Sept. 11, 2010, in New York.

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A tear falls down the face of a mourner during New York City's 9/11 Commemoration Ceremony on Sept. 11, 2010.

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A mourner weeps as she departs Ground Zero during the annual 9/11 memorial service Sept. 11, 2010, in New York.

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A New York Fire Department uniform is seen on display in St. Paul's Chapel, outside the World Trade Center site, on Saturday, Sept. 11, 2010. Rescue workers used the church as a place to rest in the aftermath of the attacks.

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A woman sits on a bench at the Pentagon Memorial Sept. 11, 2010 in Arlington, Va.

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A carnation is placed on the bench to remember Kris Romeo Bishundat, a victim of the 9/11 attack on the Pentagon, prior to an event marking the ninth anniversary, at the Pentagon Memorial Sept. 11, 2010, in Arlington, Va.

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President Barack Obama lays a wreath at the Pentagon Memorial, marking the ninth anniversary of the September 11, 2001 attacks, Saturday, Sept. 11, 2010.

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President Barack Obama hugs an unidentified woman as he greets family members of victims, after speaking at the Pentagon Memorial Saturday, Sept. 11, 2010.

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Former first lady Laura Bush finishes her remarks as first lady Michelle Obama applauds, during a commemorative service at the site of the future Flight 93 Memorial, in Shanksville, Pa., Saturday, Sept. 11, 2010. "Nine years ago, in this skies above this field and in Washington and in New York City, we saw the worst of our enemy and the best of our nation," Bush said.

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From left: Gordon W. Felt, president of the Families of Flight 93; Pennsylvania Gov. Ed Rendell; and Interior Secretary Ken Salazar listen as first lady Michelle Obama speaks during a commemorative service in Shanksville, Pa., Saturday, Sept. 11, 2010.

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Gordon W.Felt, president of Families of Flight 93, and Joanne Hanley, Superintendent of the Flight 93 National Memorial, show First Lady Michelle Obama and former First Lady Laura Bush the future site of the memorial to the passengers and crew of Flight 93, under construction in a field near Shanksville, Pa.

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The U.S. Ambassador to Russia John Beyrle holds a candle at the Church of St. Catherine in remembrance of Sept. 11, 2001 victims, in Moscow Saturday, Sept. 11, 2010.

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President Barack Obama paints with other volunteers as he participates in a National Day of Service and Remembrance project with the Armed Services YMCA Operation Kid Comfort, Saturday, Sept. 11, 2010, at the Ron Brown Middle School in Washington.

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Matt Sky, left, of Manhattan, N.Y., argues in favor of the proposed Islamic center to be built near Ground Zero, against Rose Van Guilder, second from right, of West Sayville, N.Y., and Lance Corey of Ossining, N.Y., right, who oppose the plan, in New York, Saturday, Sept. 11, 2010.

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A woman argues against allowing an Islamic Interfaith Center to be built two blocks north of Ground Zero, at a rally in lower Manhattan Saturday, Sept. 11, 2010.

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U.S. military personnel participate in a candlelight service to honor those who lost their lives in the terrorist attacks of Sept. 11, 2001, at Camp Phoenix, Kabul, Afghanistan, Saturday, Sept. 11, 2010.

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Students and staff from Pepperdine University in Malibu, Calif., place nearly 3,000 flags in the ground to honor the victims of the September 11, 2001 terrorist attacks, on Sept. 10, 2010.

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Men work at the site of One World Trade Center, which is still under construction at ground zero, on Sept. 8, 2010, in New York.

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A woman looks out over ground zero on Sept. 8, 2010, in New York.

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Work continues on one of the future reflecting pools that will form part of the 9/11 memorial at ground zero on Aug. 31, 2010, in New York. Construction continues at site of the former World Trade Center complex that was destroyed by terrorists on Sept. 11, 2001, with the basins of the two reflecting pools - representing the footprints of the twin towers - nearly completed. The waterfalls in the pools will be among the largest man-made waterfalls in the world.

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Demonstrators attend a rally with the Coalition to Honor Ground Zero on Aug. 22, 2010, in New York. The rally was held to oppose the construction of an Islamic Center and mosque near Ground Zero. Supporters of the mosque plans have held similar demonstrations.

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The first Swamp White Oak trees to be planted in Memorial Plaza are watered following a ceremony at ground zero on Aug. 28, 2010, in New York. The trees were chosen from areas within a 500-mile radius of the World Trade Center site, including New York, Pennsylvania and near Washington, to symbolize the locations directly impacted by the 9/11 attacks.

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