American military officials, as well as some officials within the White House, however, have urged the administration to retain more ambiguous wording from the Bush era, which says that nuclear deterrence is only the primary role of American nuclear weapons, which would leave open the option of using nuclear weapons against enemies that threaten the US with chemical or biological weapons.
しかし、ホワイトハウス内の関係者同様に米軍当局者は、核の抑止力は化学や生物の兵器で米国を脅かす敵に核兵器を使用するオプションの可能性を残し、米国の核兵器の唯一の中心的な役割だと述べて、ブッシュ時代から、より曖昧な言い回しを保持することを政権に要請している。