What do taxation, cyber networks, software and humans have in common? They each are vulnerable to adversarial conflicts. Taxation faces non-compliance, networks face attacks, software faces malware, and humans -- among many vulnerabilities, are susceptible to disinformation.  In this talk Dr. O'Reilly will describe work on Artificial Adversarial Intelligence (AAI), employing machine learning and evolutionary algorithms, to support the modeling and discovery of new knowledge of these systems' adversarial nature.