Aerial shots of September 11 attack released

Smoke and dust engulf the area around the World Trade Center tower in New York, in this September 11, 2001 handout file photo taken by the New York City Police Department and obtained by ABC News, which claims to have obtained it under the Freedom of Information Act. [Agencies]

Smoke billows from a tower of the World Trade Center in New York, in this September 11, 2001 handout file photo taken by the New York City Police Department and obtained by ABC News, which claims to have obtained it under the Freedom of Information Act. [Agencies]