The 2010 US Nuclear Posture Review listed reducing nuclear weapons' role in national security strategy among the key objectives of nuclear weapons policy. It also restricted the circumstances under which the United States would contemplate using nuclear weapons. But the report also renewed a commitment "to hold fully accountable any state, terrorist group, or other non-state actor that supports or enables terrorist efforts to obtain or use weapons of mass destruction… ." This commitment -- which seems to leave open the possibility of a nuclear attack against states that provide weapons of mass destruction to terrorists -- seeks to address the difficulty of deterring groups like Al Qaeda. But the commitment raises difficult questions about attributing responsibility for a terrorist group's acquisition of a nuclear capability, and about the policy's compatibility with reducing nuclear weapons stockpiles and eventually achieving disarmament. Below, Evgeny Buzhinsky of Russia, Sadia Tasleem of Pakistan, and Manpreet Sethi of India address this question: How do US efforts to deter terrorist attacks through its nuclear policy affect international security as well as nonproliferation and disarmament efforts?