This makes me wonder if anyone has ever thought of using Wi-Fi and cell phone radio signals to locate people in rubble piles.
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This is a brilliant thought
End of conversation
New conversation -
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Rescue them
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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