Foucault 78 (Michel, Professor of Philosophy at the College de France, The History Of Sexuality: An Introduction, Volume 1, 136-137)
Since the classical age the West has undergone a very profound transformation of these mechanisms of power. “Deduction” has tended to be no longer the major form of power but merely one element among others, working to incite, reinforce, control, monitor, optimize, and organize the forces under it: a power bent on generating forces, mak¬ing them grow, and ordering them, rather than one dedicated to impeding them, making them submit, or destroying them. There has been a parallel shift in the right of death, or at least a tendency to align itself with the exigencies of a life-adminis¬tering power and to define itself accordingly. This death that was based on the right of the sovereign is now manifested as simply the reverse of the right of the social body to ensure, maintain, or develop its life. Yet wars were never as bloody as they have been since the nineteenth century, and all things being equal, never before did regimes visit such holocausts on their own populations. But this formidable power of death—and this is perhaps what accounts for part of its force and the cynicism with which it has so greatly expanded its limits—now presents itself as the counterpart of a power that exerts a positive influence on life, that endeavors to adminis¬ter, optimize, and multiply it, subjecting it to precise controls and comprehensive regulations. Wars are no longer waged in the name of a sovereign who must be defended; they are waged on behalf of the existence of everyone; entire populations are mobilized for the purpose of wholesale slaughter in the name of life necessity: massacres have become vital. It is as managers of life and survival, of bodies and the race, that so many regimes have been able to wage so many wars, causing so many men to be killed. And through a turn that closes the circle, as the technology of wars has caused them to tend increasingly toward all-out destruction, the decision that initiates them and the one that terminates them are in fact increasingly informed by the naked question of survival. The atomic situation is now at the end point of this process: the power to expose a whole population to death is the underside of the power to guarantee an individual’s con¬tinued existence. The principle underlying the tactics of bat¬tle—that one has to be capable of killing in order to go on living—has become the principle that defines the strategy of states. But the existence in question is no longer the juridical existence of sovereignty; at stake is the biological existence of a population. If genocide is indeed the dream of modern powers, this is not because of a recent return of the ancient right to kill; it is because power is situated and exercised at the level of life, the species, the race, and the large-scale phenomena of population.