Which department oversees nuclear weapons?

Answer 1

1. right after World War 2 it was still the Manhattan Project
2. when the Atomic Energy Commision was established in 1947 this responsibility was transferred to the Armed Forces Special Weapons Project
3. in 1958 this responsibility was transferred to the Defense Atomic Support Agency
4. in 1971 this responsibility was transferred to the Defense Nuclear Agency
5. in 1996 this responsibility was transferred to the Defense Special Weapons Agency
6. in 1998 this responsibility was transferred to the Defense Threat Reduction Agency

In many cases the department change was largely a change in name only, as many of the people and policies remained identical.

Answer 2

I was surprised to learn the other day with Rick Perry becoming the head of the energy department that he would be in charge of nuclear weapons.