https://www.washingtonpost.com/news/wonk/wp/2017/10/25/is-100000-middle-class-in-america/
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https://www.washingtonpost.com/news/wonk/wp/2017/10/25/is-100000-middle-class-in-america/
origin - http://www.pipiscrew.com/?p=10676 is-100000-middle-class-in-america