Peut-on arrêter un missile nord-coréen? Oui, mais...

Théoriquement les États-Unis pourraient détruire un missile nord-coréen à l'aide d'un autre missile, mais le système n'a pas fait ses preuves.

 "North Korea can make a nuclear bomb and has an intercontinental ballistic missile capable of reaching the U.S. mainland. If it launches such a missile, the United States has a $40 billion system designed to destroy the bomb in space.

 What’s unknown is whether it will succeed.

The system, called Ground-based Midcourse Defense (GMD), is a work in progress. It has failed to destroy dummy warheads in six of 10 tests since becoming operational in 2004, but the two most recents tests succeeded. Here’s how it works."

https://www.washingtonpost.com/graphics/2017/world/north-korea-missile-defense/?hpid=hp_hp-top-table-main_nkoreamissile-445pm%3Ahomepage%2Fstory&utm_term=.1c86e3d8c84d