50 U.S.C. § 2660

Pub. L. 107–314, div. D, title XLV, § 4509Pub. L. 112–239, div. C, title XXXI, § 3115(a)Jan. 2, 2013126 Stat. 2172 Pub. L. 113–291, div. C, title XXXI, § 3111Dec. 19, 2014128 Stat. 3884 Section, , as added , , ; amended , , , related to design and use of prototypes of nuclear weapons for intelligence purposes.