Extremists no longer hide in the shadows and exchange their views in private online chat rooms. Elected officials attend white nationalist rallies , entertainers spew antisemitism, some television shows promote the “Great Replacement” theory , and Trump has even called for the “termination” of our Constitution . Since the Jan. 6 insurrection, this extremism has manifested itself in violence against members of Congress and their family members, deadly assaults on the Jewish community and their places of worship, and mass shootings aimed at LGBTQ, Black, and brown communities. It is no wonder that the Federal Bureau of Investigations and Department...