How to avoid that light on facts and past acts implodes any community which tempts a refondation? The treatment of the hatred, which accompanies civil war, is one of the most pointed cyclical problems in politics The essay concerns two procedures of exception : in Athens, after civil war, decree of 403, first procedure of amnesty ; and, in current South Africa, the commission of the Truth and Conciliation. That one confronts with a «normal» procedure: (...) that of the management of the sensitive archives, such as we practise it in France. On this way, one hopes to put in light certain links among political and practical discursive, and some teachings as for the manners of which can be formed the truth and the politics. (shrink)