CBS Evening News | The F-35 is what the Air Force, Navy and Marines are counting on to replace all their current fighter jets. But the F-35 is seven years behind schedule and $163 billion over budget. David Martin finds out why, this Sunday on "60 Minutes."

How did the F-35 wind up so far over budget?

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The F-35 is what the Air Force, Navy and Marines are counting on to replace all their current fighter jets. But the F-35 is seven years behind schedule and $163 billion over budget. David Martin finds out why, this Sunday on "60 Minutes." Air Date: Feb 14, 2014

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