Remembering 9/11: The day world changed The "Tribute in Lights" (R) and One World Trade Center (L - lit in red, white and blue) illuminate the lower Manhattan skyline as seen from Jersey City, New Jersey September 10, 2011. National and city leaders will commemorate on Sunday the ten-year anniversary of the 9/11 attacks with a ceremony unveiling a memorial and museum. (REUTERS) US soldiers from Task Force Bronco take part in a memorial run to commemorate the 10th anniversary of the 9/11 attacks, at FOB Shinwar, a US military camp in Nangarhar, Afghanistan September 11, 2011. (REUTERS) A visitor reads the names and of 9/11 terrorist attack victims on a wall outside Ground Zero memorial in Manhattan on September 10, 2011. New York marks the 10th anniversary of the 9/11 terrorist attacks on Sunday. (AFP) Amtrak Police K9 Lex patrols Penn Station September 9, 2011 in New York City. A 4-year-old yellow Labrador Retriever, Lex is trained and certified in "Vapor Wake" explosive tracking and detection. US government officials said yesterday evening that there is a "specific, credible but unconfirmed threat" to the US homeland as the 9/11 anniversary approaches and that New York and Washington were specifically mentioned as possible targets.(AFP) Broadway performers sing "New York, New York" to commemorate the 10th anniversary of the Sept 11 attacks, Friday Sept 9, 2011 in New York's Duffy Square. The mini-concert was a replay of what the Broadway community sang 10 years ago to promote theater in New York City following 9/11. (AP) People tie "Ribbon of Rememberance" on "The Bell of Hope", a bell offered by the city of London and which rings once a year on September 11 to remember victims from the 9/11 World Trade Center attacks, at St Paul's Chapel near Ground Zero, in New York, September 8, 2011. New York is getting ready to commemorate the 10th anniversary of the 9/11 attacks on the World Trade Center towers. (AFP) An memorial to victims of the 9/11 World Trade Center attacks inside St Paul's Chapel near Ground Zero, in New York, September 8, 2011. New York is getting ready to commemorate the 10th anniversary of the 9/11 attacks on the World Trade Center towers. (AFP) The south tower of the World Trade Center bursts into flames after being struck by United Airlines Flight 175 in New York in this September 11, 2001 file photo. September 11th marks the 10th anniversary of the 9/11 attacks where nearly 3,000 people died when four hijacked airliners were used in coordinated strikes on the Pentagon and the World Trade Center towers. The fourth plane crashed in Pennsylvania. (REUTERS) An aerial view of the World Trade Center disaster site in New York in this September 18, 2001 file photo. September 11th marks the 10th anniversary of the 9/11 attacks where nearly 3,000 people died when four hijacked airliners were used in coordinated strikes on the Pentagon and the World Trade Center towers. The fourth plane crashed in Pennsylvania. (REUTERS) Cars smolder in the street as the destroyed World Trade Center burns in New York in this September 11, 2001 file photo. September 11th marks the 10th anniversary of the 9/11 attacks where nearly 3,000 people died when four hijacked airliners were used in coordinated strikes on the Pentagon and the World Trade Center towers. The fourth plane crashed in Pennsylvania. (REUTERS) Police, firemen and a civilian carry the body of FDNY Chaplain Mychal Judge after he was killed in the collapse of the south tower at the World Trade Center in New York September 11, 2001 file photo. September 11th marks the 10th anniversary of the 9/11 attacks where nearly 3,000 people died when four hijacked airliners were used in coordinated strikes on the Pentagon and the World Trade Center towers. The fourth plane crashed in Pennsylvania. (REUTERS) The damaged area of the Pentagon is seen at sunrise with the US Capitol Building in the background in this September 16, 2001 file photo. September 11th marks the 10th anniversary of the 9/11 attacks where nearly 3,000 people died when four hijacked airliners were used in coordinated strikes on the Pentagon and the World Trade Center towers. The fourth plane crashed in Pennsylvania. (REUTERS) A patron of the Barnes & Noble bookstore in Springfield, Ill, reads a copy of the "The 9/11 Commission Report. (AP) In this Jan 20, 2009, file photo former President George W. Bush, right, hugs President Barack Obama after Obama was sworn in at the US Capitol in Washington. Handing off the wars and the swollen anti-terrorism apparatus to his successor, Bush said in his final White House address in 2009 that "most Americans were able to return to life much as it had been before 9/11." He quickly added: "I never did." (AP) London Mayor Boris Johnson, standing next to the sculpture, unveils the sculpture, designed by New York artist Miya Ando and made from steel recovered from the World Trade Center after the September 11, 2001 terrorist attacks, in Battersea Park in London, Monday, Sept 5, 2011. The artwork, called "After 9/11", was commissioned by the 9 11 London Project to mark the launch of its new education program. (AP) A view of the World Trade Center North Tower memorial pool at the National September 11 Memorial and Museum in New York,Tuesday, Sept 6, 2011. (AP) In this Sept 4, 2002, file photo a drawing of the Sept 11 attacks on the World Trade Center twin towers by a first-grade student at Newark's Abingdon Avenue School is displayed at an exhibit of Sept. 11 artifacts at the New Jersey Historical Society in Newark, NJ. American flags are displayed behind a wall of remembrance listing the 2,996 names of those killed in the terrorist attacks of September 11, 2001, at Palm Mortuary & Cemetery September 7, 2011 in Las Vegas, Nevada. The memorial will be displayed until September 18 for people marking the 10th anniversary of the 9/11 attacks. (GETTY) Tessa Clement, 6, (back) and her sister Terra Clement, 4, of Nevada walk through a field of of 2,996 American flags symbolizing the number of people killed in the terrorist attacks of September 11, 2001 at Palm Mortuary & Cemetery September 7, 2011 in Las Vegas, Nevada. The memorial will be displayed until September 18 for people marking the 10th anniversary of the 9/11 attacks. Jon Bon Jovi performes a rendition of America The Beautiful at the NYFD Battalion 8, Engine 8, Ladder 2 fire house Wednesday, Sept 7, 2011 in New York to pay tribute to 9/11 first responders. The performance will air during a special "NFL Kickoff 2011: Back to Football" show on NBC Saturday night at 8 PM. (AP) Email Facebook Twitter LinkedIn Whats App Pin Interest