provide three concrete examples that illustrate how technology, scientific approaches and modern thinking manifested in dangerous and even regressive ways

provide three concrete examples that illustrate how technology, scientific approaches and modern thinking manifested in dangerous and even regressive ways.  One of the major themes of the course thus far has been the double-edged nature of technology, scientific approaches, and “modernity. On one hand these concepts helped bring the United States into the modern world; spurring innovation, firing the modern industrial economy, and largely building the society that still is the basis for this country today. On the other, technology and scientific approaches inflicted terrible consequences as well; fueling racism, driving conquest, and making war much more costly. In your essay, first explain why “modernity” and the thinking that drove it presented so many potential pitfalls. Then provide three concrete examples that illustrate how technology, scientific approaches and modern thinking manifested in dangerous and even regressive ways. (Focusing on the Gilded Age, Imperialism, World War I, and the Twenties may be helpful here)