American Express will support the building of a Museum of Freedom in the redesigned WTC space, according to the Times. From the article:

"The museum would be part of a two-building cultural complex as conceived by Daniel Libeskind, whose design for the 16-acre site was chosen earlier this year. The second building would house a performing arts center, which would probably become the home for the New York City Opera. In addition to its repertory, the opera company would stage musical theater at the hall that it may want to take on the road.

As envisioned, the first floor of a Museum of Freedom would be devoted to the attacks of Sept. 11, 2001; the second floor would be dedicated to the history of New York City; the third would explore freedom from a national perspective; and the fourth would have an international focus."

The New York City Opera site