Throughout my life, politics and political science have been intertwined. I handed out leaflets for Adlai Stevenson at age 12, participated in protests at Oberlin and Berkeley, and, as I developed professional expertise, worked with national security agencies. Conflict has been a continuing interest, particularly whether situations are best analyzed as a security dilemma or aggression. In exploring this question, I was drawn into both political psychology and signaling, although the two are very different.