Doublespeak (sometimes called doubletalk) is language constructed to disguise or distort its actual meaning, often resulting in a communication bypass. Doublespeak may take the form of bald euphemisms (e.g., "downsizing" for layoffs) or deliberate ambiguity.
This issue was already adressed by Noam Chomsky in his 1980s pamphlet on Palestine, so it's nothing new, at least for me. But Intifada blog has a good and brief article on it:
The language that absolves Israel.
Take a look.