Sixteen preservice teachers participated in a service-learning project to build tolerance in the community as a result of their desire to do something or to make a difference after the terrorist attacks of September 11, 2001. Student reflection papers revealed an increase in student tolerance and feelings of competence after participating in the project. Student-led project work enabled students to direct their own learning, reflect on feelings about terrorism and tolerance, participate in collaborative relationships and make a contribution to campus and community life. Advocacy and mentoring are discussed as key teaching strategies for replicating project outcomes. (Contains 1 table and 4 figures.)