The Iron Dome - 90% Accuracy BS

[Zaphod58]

I love it when you guys teach me.  Thanks... 

Missile and Air Defense systems are layered. Usually there's a long, a mid, and a short range system all working together. A US AD set up may have THAAD for exoatmospheric interceptions against ballistic missiles, a Patriot for mid range against things like Scud or Fattah, and Avenger for short range work. Or it may be Patriot, NASAMS, and Avenger or any combination. Whatever the long range systems don't engage, the others will, etc.