Letters written by Helen Keller among valuable records lost on 9/11

From The AP. In the picture, a bust of Helen Keller scorched and covered in World Trade Center dust on display in New York. NEW YORK — Letters written by Helen Keller. Forty-thousand photographic negatives of John F. Kennedy taken by the president's personal cameraman. Sculptures by Alexander Calder and Auguste Rodin. The 1921 agreement that created the agency that built the World Trade