Despite significant contributions in the past decade to our understanding of various aspects of WMD terrorism, the topic seems to have reached something of an “interpretive impasse.” A recent survey of more than 120 books, journal articles, monographs, and government reports dealing with WMD terrorism indicated that the scholarly and policy-related literature has increasingly begun to recycle the same interpretations and staid shibboleths. This is not meant to denigrate several excellent works that have emerged, merely to point out that truly novel insights into WMD terrorism are becoming few and far between.