Many people are remarkably willing to treat strangers with kindness. This is a fragile capacity unique to humans. Moral enhancement may be able to extend our ability to cooperate in a world in which existential risks and global collective action problems pervade our lives. In the first chapter I argued that cognitive enhancement may be a form of moral enhancement, to the extent that it creates stable institutions that lower the risk of trusting others and treating them with generosity. It can’t create better motives, but it may create the conditions for better motives to flourish. This chapter will focus on some of the collective action problems that altering our moral motives might create, and solve.