Doublespeak is language that deliberately disguises, distorts or reverses the meaning of words. Doublespeak may take the form of euphemisms, for example, "downsizing" for "layoffs", making the truth less unpleasant.
The discourses of power are full of euphemisms. Words no longer fit with facts. Annihilators are called nuclear arms, as if they were simply a more powerful version of conventional arms. We call 'the free world' a world full of examples of the most obscene inequities and violations of human rights. In the name of the people, systems are created where people must simply comply obediently with the dictums of the 'almighty state'. Peaceful protest marchers are severely punished and imprisoned for public disorder and subversion, while state terrorism is accepted as law and order. The end result is that people cease to understand and either turn into cynics or melt into impotent, perplexed and alienated masses.