Was there a 5th plane on 911?

A new documentary explores the theory that hijackers planned to take down a fifth plane on 9/11. But the theory raises many questions, not least why neither the FBI or the US government's landmark investigation into the disaster ever mentioned anything about United 23.



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American Airlines flight 11 and United Airlines flight 175 were flown into the World Trade Center's north and south towers, respectively, and American Airlines flight 77 hit the Pentagon. United Airlines flight 93 crashed in a field near Shanksville, Pennsylvania, after passengers attempted to overpower the hijackers.

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The hijackers inside the cockpit are heard yelling No! over the sound of breaking glass. The final spoken words on the recorder were a calm voice in English instructing, Pull it up. The plane then crashed into an empty field in Stonycreek, Pennsylvania, about 20 minutes' flying time from Washington, D.C.

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On Sept. 11, 2001, 343 firefighters and paramedics were killed, most when the towers collapsed. Now, an equal number have died from 9/11-related illnesses, the FDNY says.

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The North Tower lasted around 46 minutes longer than its twin, having been struck 17 minutes before the South Tower was attacked and standing another half-hour after the South Tower collapsed.

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The move to cancel 9-1-1 may have been surprising for some, but it came down to finances for FOX. Since 20th Century Studios is now owned by Disney and no longer the network's in-house studio, the cost of 9-1-1 became too much to justify the returns.

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