Under the willful blindness doctrine widely employed in federal criminal prosecutions, courts expand a statutory “knowledge” or “willfulness” requirement to encompass “willful blindness” or “deliberate indifference.” The WB doctrine bridges the gap between recklessness and knowledge, treating a subcategory of recklessness cases as if they were knowledge cases—namely, those cases in which defendant is not merely aware of a substantial risk that the incriminating fact exists, but also deliberately avoided confirmation of the incriminating fact. This article closely examines different versions of the WB doctrine as well as its application in recent cases. Careful analysis suggests that the doctrine, although justifiable in the abstract as a ma...