Less than two days after Immigration and Customs Enforcement agent Jonathan Ross fatally shot Renee Good in Minneapolis during a controversial enforcement operation, the Department of Homeland Security’s official Instagram account made a recruitment post proclaiming “We’ll Have Our Home Again,” attaching a song of the same name by Pine Tree Riots. Popularized in neo-Nazi spaces, the track features lines about reclaiming “our home” by “blood or sweat,” language often used in white nationalist calls for race war. The post is part of a growing trend in which the federal government openly embraces the visual language of white supremacy and...