Environ 10 milliards de dollars par an investis dans la #défense_anti-missile aux #États-Unis. Pour quoi ?
The Emperor’s New Missile Defense
http://www.scientificamerican.com/blog/post.cfm?id=the-emperors-new-missile-defense-2011-01-07
The central problem with missile defense systems is that decoys are always cheaper to deploy than interceptors. Moreover, an imperfect system is intrinsically destabilizing, because it encourages building and launching more weapons. Even a system with 90% efficiency, far in excess of any existing system, will result in a 50-50 chance of successful penetration for every 5 missiles launched.