I believe the answer is precautionary principle
precautionary principle refers to the actions/measurements that taken before threats are occuring in order to prevent/anticipate the potential damage that caused by those threats. Examples of the precautionary principle: banning a certain form of chemicals to be used for pesticides.<span>
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The name of the voyage of Africans across the Atlantic to the Americas was known as "The Middle Passage". This was a very tough voyage in which several African slaves died. It has been estimated by a famous author of slave trade named Philip Curtin that about an estimated 6.3 million African slaves were shipped from African to North America and South America. During the numerous voyages from Africa to America, the journey was so stressful that countless number of slaves died along the way. Several captive slaves also died while waiting for their turn to be shipped.