A September 11, 2001 file photo shows U.S. President Bush listening to White House Chief of Staff

A September 11, 2001 file photo shows U.S. President George W. Bush listens as White House Chief of Staff Andrew Card informs him of a second plane hitting the World Trade Center, while Bush was conducting a reading seminar at the Emma E. Booker Elementary School in Sarasota, Florida. New York City plans to mark the third anniversary of the attacks on the trade center with an observance at the site on September 11 with parents and grandparents of victims reading their names. REUTERS/Win McNamee