This photo taken Sept. 11, 2001 by the New York City Police Department and obtained by ABC News, which claims to have obtained it under the Freedom of Information Act, shows one of the towers of the World Trade Center in New York as it begins to crumble. (AP Photo/NYPD via ABC News, Det. Greg Semendinger)
Read the article: New aerial NYPD photos of Sept. 11 attack released
