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File photo: The cockpit of a Boeing 777F.
File photo: The cockpit of a Boeing 777F.

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    'Transponder' can help find Flight 370

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'Transponder' can help find Flight 370

Commercial pilot Bill Palmer explains what a transponder is and why it's so crucial in locating Flight 370.

'Transponder' can help find Flight 370

Commercial pilot Bill Palmer explains what a transponder is and why it's so crucial in locating Flight 370.