Many philosophers have written about making people disbelievingly ignorant. They have studied what deception is and the ethics of deceiving people. Given their shared epistemological structure, deceiving someone and putting her in a state of suspending ignorance are arguably on the same ethical footing. People actively conceal or destroy evidence in order to keep other people ignorant. For instance, unfaithful spouses often hide evidence of their affairs. People even fabricate or modify evidence in order to make other people ignorant. Making someone ignorant always involves causing someone to be in a worse epistemic state than she might have been in. The intentional creation of deep ignorance has an epistemological structure that is similar to the intentional creation of a false belief. The intentional creation of deep ignorance is not about modifying someone's doxastic attitude so that she has less confidence in the truth of a particular proposition.