Once again troll acting Chinese expert. Next time these American will claim they know Chinese literature better than native Chinese and their words are gold.Again..
Since when SASTIND have control of China's Nuclear Weapons & Arms Deployment?
SASTIND control China Atomic Energy (Which is oversee about China's Nuclear Energy but not China's Nuclear Weapon like you said). China's Nuclear Weapons are under authority of PLA-RF (Strategic Rocket Forces) which is under command of CMC (Central Military Commission), including all of their Military branch & related.
Meanwhile, SASTIND under the command of China's Ministry of Industry & Infomation Technology which is under authority of State Council.
They both have different hierarchy..
You need to learn more from Objective source than depends on all brainwashing propaganda western media