It has typically been assumed that affective and social components of disagreement, such as trust and fair treatment, can be handled separately from substantive components, such as beliefs and logical principles. This has freed us to count as “deep” disagreements only those which persist even between people who have no animosity towards each other, feel equal to one another, and are willing to argue indefinitely in search of truth. A reliance on such ideal participants diverts us from the question of (...) whether we have swept away the opportunity for some real arguers to have their voices heard, and for those voices to determine the real substance of the disagreement. If affective and social issues need to be assessed side by side with belief differences and reasoning paradigms, investigating trust may assist us to understand and make progress on the affective and social components that are involved in disagreement. (shrink)