1. What was the main means of transport a few centuries ago? 2. How did travels affect ecology?
3. Is it a miracle to travel by plane today?
4. Is it safety to travel by plane?
5. How do they make sure everything runs smoothly?
6. Why are the airports looking into new technologies that reveal passengers* identities?
7. What are the main methods of baggage checking?,
8. What are security firms working on today?
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dianka2712    3   17.01.2021 19:33    17