However, weapons of mass destruction have in fact proliferated, and the risk of further proliferation cannot be excluded, as shown in past cases of non-compliance with the Treaty on the Non-Proliferation of Nuclear Weapons.
但是，事实上大规模毁灭性武器已经在扩散;正如不遵守《不扩散核武器条约》的情事所表明，不能排除这些武器进一步扩散的可能性。