SDI was very destabilizing as well. You are basically announcing that at a future date you will hold all the nuclear cards. So there's some rationale to any adv

SDI was very destabilizing as well. You are basically announcing that at a future date you will hold all the nuclear cards. So there's some rationale to any adversary launching on you today, before you complete the program; at which point you could club them over the head while they can't fight back.