The Senate Foreign Relations Committee, under its new chairman, Richard Lugar, should make its first order of business an inquiry into President Bush's maladroit and shortsighted decision-making in the So San affair. Our National Security Agency, to its credit, spotted the movement of 15 Scud missiles and 85 drums of chemicals from a factory in North Korea to its secret loading aboard the freighter So San, and tracked the unflagged ship around the world to the Arabian Sea. The C.I.A. was unable to determine the customer of these offensive weapons, unreliable in military combat but useful in striking terror into...