International Proliferation of Anti ICBM Lasers

[Pengwuino]

Are ICBM's vulnerable to emp?

Not anymore i think. Both sides during the Cold War had the idea to detonate nuclear weapons in the atmosphere hoping the EMP would disrupt the enemies missiles. Since it's fairly easy to shield things against EMP, I'm sure both sides have hardened their missiles for EMP attacks.

Also, the idea of tossing up and detonating multiple nuclear weapons into the atmosphere as a deterent was found to be rather impractical.