Politics

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A Justice Department investigation into the alleged White House leak of an undercover CIA agent's identity is expanding to include other federal agencies. Experts explain the workings of such an investigation.

David Kay, the lead CIA investigator into weapons of mass destruction in Iraq, briefed House and Senate Intelligence committees today about his interim findings. Jim Lehrer speaks with Kay about his testimony on Capitol Hill.

U.S. President George Bush and Russian President Vladimir Putin met over the weekend at Camp David to discuss postwar Iraq and nuclear programs in North Korea and Iran. Two regional experts provide their perspectives on the changes in U.S.-Russian relations.