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Surveillance cameras were invented so Nazi scientists could observe rocket launches from a safe distance. They've come a long way since then, and are gathering more data about us than ever before. But in a world where millions happily carry smartphones in our pockets, how do we really feel about being watched?
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ข้อสงวนสิทธิ์: พอดแคสต์และอาร์ตเวิร์คที่ฝังอยู่ในหน้านี้มาจาก BBC World Service ซึ่งเป็นทรัพย์สินของเจ้าของและไม่มีส่วนเกี่ยวข้องหรือรับรองโดย Listen Notes, Inc.
