Here is some coverage from MSNBC, CNN and Fox News.
NEW YORK – Relatives of World Trade Center victims bowed their heads in silence at a small park Tuesday to mark the moment exactly six years earlier when the first hijacked plane struck the towers. The dreary, gray skies created a grim backdrop, and a sharp contrast to the clear blue of that morning in 2001.
“That day we felt isolated, but not for long and not from each other,” Mayor Michael Bloomberg said as the ceremony began. “Six years have passed, and our place is still by your side.”
Construction equipment now fills the vast city block where the World Trade Center once stood, and work is under way for four new towers, forcing the ceremony to be moved away from the twin towers’ footprints for the first time.