Task 3 Watch the video “A Brief History of Customs” and answer the questions by one of the four options. https://rutube.ru/video/private/e4f2fccdb6b19942a140a9115bc7637b/?p=aE2yMNl-SHUYUzIvyv3VBw Questions:7. What dangers were revealed by unbridled attempts to push exports in ancient customs systems? Economic crashes and trade wars, Increased security threats and environmental damage, International conflicts and technological setbacks, Protectionism and anti-dumping duties