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    Politicians Need to Understand This Computer Science Concept Better

    by Jesse Dunietz Jul 31, 2016 4 minutes

    I have an idea that would keep 100 percent of foreign-born terrorists out of the United States. Not only that, it’s far simpler than any presidential candidate’s proposals. All we have to do is this: Never let anybody in. Most of us find this idea ludicrous, of course, and rightly so. Keeping out terrorists is not the only goal of border policy; it’s essential that the vast majority of people can come and go freely, whether for pleasure, business, or survival. Yet many of our decisions are based on similarly shoddy reasoning: We often fail to consider that there are two sides to the accuracy seesaw.

    For example, we celebrate mammograms for detecting 84 percent of breast cancers

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