Book excerpt: Dating back millennia, antisemitism has been called "the longest hatred." Thought to be vanquished after the horrors of the Holocaust, in recent decades it has once again become a disturbing presence in many parts of the world. Resurgent Antisemitism presents original research that elucidates the social, intellectual, and ideological roots of the "new" antisemitism and the place it has come to occupy in the public sphere. By exploring the sources, goals, and consequences of today's antisemitism and its relationship to the past, the book contributes to an understanding of this phenomenon that may help diminish its appeal and mitigate its more harmful effects.