Editor's note: Richard J. Chasdi is an adjunct assistant professor at the Center for Peace and Conflict Studies at Wayne State University and the author of "Counterterror Offensives for the Ghost War World: The Rudiments of Counterterrorism Policy" (Lexington Books, 2010).
By Richard J. Chasdi - Special to CNN
World leaders are meeting in Seoul this week to discuss how to deal with the threat of nuclear terrorism.
The effort to prevent the misuse of nuclear materials and the spread of nuclear weapons has long-placed most emphasis on defensive measures. These are essentially on the "supply side" - aiming to choke off the flow of nuclear weapon components and radiological materials to terrorists. While there is a place for such steps, there is another, and perhaps more successful way, to accomplish the goal.
One of the gravest threats to nuclear proliferation arises from the nations that use proxy groups - seemingly independent organizations that are paid to further the interests of governments.
Ending or reducing the use of such proxy groups has real potential to reduce the availability of such materials to terrorists. Perhaps the single, most dominant security threat stems from the nuclear-tipped country of Pakistan, with its accepted use of proxy groups to promote the perceived national interest.
Third-party transfer, where a country receiving weapons sells or gives them to another party, is always a danger, and with it looms the possible catastrophe of nuclear weapons in the wrong hands.