The President welcomes the Republic of Korea’s decision today to join the Proliferation Security Initiative (PSI).  By endorsing the PSI Statement of Interdiction Principles, the ROK has joined 94 other countries in a global effort to prevent the spread of weapons of mass destruction (WMD), their delivery systems, and related materials to and from states and non-state actors of proliferation concern.  We look forward to working with the South Korean Government to stop the proliferation of WMD-related materials worldwide and to strengthening the Initiative for the future.