Deep Dive Lab: Why American Girls Are Chanting in Korean— The Age of Trump, and the "Ghost" Called 4B Crossing the OceanImagine this: You open TikTok, and your screen is filled with young American women, grim-faced, holding scissors to their long hair. In broken Korean, they chant a strange mantra: "I am doing 4B." At first glance, you might mistake it for the latest K-Pop dance challenge. But t..