Which statement represents the viewpoint of the interventionists? (1 point) the united states should avoid alliances with other nations. complete neutrality was the best way to keep the united states safe. axis aggressions were wrong and threatened american interests. intervention in a foreign war would be a mistake.

An interventionist viewpoint states that the United States should be part of foreign events even when it doesn't affect it directly. For example, the U.S. has interfered in the Palestinian war against Israel because of the political and economic interest it has in that region and not because the U.S. was attacked.  Another example happened when the axis aggressions were wrong and threatened american interests in Europe during World War II, because the United States was not directly invaded, but the Axis' actions affected the American economic and political interests.

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.

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