"Although we recognize that export controls cannot be 100 percent effective in preventing individual transfers, we are convinced that such efforts buy us time to implement other measures to mitigate the impact of these transfers. We believe that a more focused approach of the denial strategy -- concentrating on those key enabling technologies that are produced by a limited number of states -- will, if applied universally, raise the cost to, and increase the difficulty encountered by, even the most determined proliferant."

    Mitchel B. Wallerstein
    Deputy Assistant Secretary of Defense
    Presentation to the Conference on Dealing
    with the Spread of Nuclear Weapons
    The Hague, May 19-20, 1995

    "Weapons of mass destruction -- nuclear, biological, and chemical -- along with their associated delivery systems, pose a major threat to our security and that of our allies and other friendly nations. Thus, a key part of our strategy is to seek to stem the proliferation of such weapons and to develop an effective capability to deal with these threats. We also need to maintain robust strategic nuclear forces and seek to implement existing strategic arms agreements."

    A National Security Strategy of Engagement and Enlargement,
    The White House, February 1995, p. 13.