President Bush said Wednesday that no more countries should have the ability to enrich or process nuclear material. National Security Adviser Condoleezza Rice talks to Ray Suarez about the president's speech and the situation in Iraq, where some 50 people…

Sen. John Edwards, D-N.C., discusses his campaign's strategy after a Tuesday victory in his native South Carolina -- a state the candidate had said he must win to remain competitive.

Former chief U.S. weapons inspector David Kay told Congress Wednesday that U.S. prewar weapons intelligence assessments on Iraq, which led to the American invasion, were "almost all wrong." Jim Lehrer speaks with Kay about his findings and why an independent…

Energy Secretary Spencer Abraham discusses the initial findings of a U.S.-Canadian task force that has been investigating the massive electricity blackout on August 14. He also explains how measures in the energy bill being considered in the Senate would help…

Sen. John McCain (R-Ariz.) speaks with Jim Lehrer about recent statements he made criticizing American foreign policy in Iraq and Russia. The onetime Vietnam POW draws comparisons between the reduction of U.S. troop levels in Iraq and the United States'…