The attacks on september eleventh brought down the world trade center...But now some of the the mangled steel left behind... Has been turned into military muscle.Part of the twin towers lives on inside one of the navy's newest assault ships, the u.s.s. New york.Fox's laura ingle has more.LIKE A PHOENIX RISING FROM THE ASHESTHE U.S.S. NEW YORK MAKES ITS WAY TOWARDS LOWER MANHATTAN...GREETED WITH BAGPIPES...THE ARRIVAL IS A HOMECOMING OF SORTS... THE BOW OF THE *ONE-BILLION DOLLAR* SHIP CONTAINS MORE THAN *SEVEN TONS* OF STEEL FROM THE FALLEN TOWERS.THE U.S.S. NEW YORK STOPPED BY GROUND ZERO... AS THE CREW STOOD AT ATTENTION ON THE DECK OF THE BATTLESHIP.THERE WAS A TWENTY-ONE GUN SALUTE TO HONOR THE VICTIMS OF NINE-ELEVEN.A CROWD OF PEOPLE WATCHED AS THE MASSIVE VESSEL MADE ITS WAY ALONG THE HUDSON RIVER...FOR MANY, THE SHIP'S ARRIVAL WAS EMOTIONAL.MOS says: "It was just very moving, and i'm not from new york...this is my first time in new york city...it was just very moving."MICKEY KROSS -- A RETIRED NEW YORK CITY FIREFIGHTER -- WAS BROUGHT TO TEARS BY THE SHIP'S ARRIVAL.KROSS says: "yeah, it's quite emotional for me...as you can see."KROSS HELPED PULL VICTIMS AND RUBBLE FROM GROUND ZERO.KROSS says: "i feel a part of that ship, I was there for 9 months during the recovery."HE ATTENDED THE SHIP'S CHRISTENING EARLIER THIS YEAR... AND WILL BE THERE WHEN THE SHIP IS COMMISSIONED ON SATURDAY.(ON CAM TAG)THE SHIP WILL REMAIN HERE IN NEW YORK THROUGH VETERAN'S DAY...THEN IT WILL HEAD TO IT'S NEW HOME PORT IN VIRGINIA, WHERE IT WILL REMAIN FOR ABOUT A YEAR FOR CREW TRAINING AND EXERCISES.IN NEW YORK, LAURA INGLE, FOX NEWS.