PTJ and Dan pick up where they left off – on Chapter 5 of Arnold Wolfers' Discord and Collaboration. There's a lot going on, including a discussion of revisionism, the question of whether "friendship" is possible in world politics, and the distinction between "power" and "influence." They cover classic essays on, for example, the balance of power and "'National Security' as an Ambiguous Symbol." They ask if Wolfers offers an alternative vision of the study of realpolitik... and if that vision is still relevant more than fifty years later.