Has the United States overcome its "Vietnam Syndrome"? Listen in to a debate on whether the Vietnam War still affects Washington's military and diplomatic policies, as featured on the weekly CNN program "Postscript" -- which accompanies the COLD WAR series.

CNN World Affairs Correspondent Ralph Begleiter, Russian historian Vladislav Zubok, American scholar Thomas Blanton and Pulitzer Prize-winning journalist Stanley Karnow consider Vietnam's lasting impact on the American psyche.

Karnow covered Europe, Africa, the Middle East and Asia for TIME, LIFE, the London Observer, the Washington Post and other publications. Among his assignments, Karnow accompanied U.S. President Richard Nixon to China in 1972. He was in Vietnam in 1959 when the first Americans were killed there -- and reported on the war until its conclusion. In 1983, Karnow published the bestselling "Vietnam: A History."

Zubok is one of the leading historians of the Soviet side of the Cold War and the author of "Inside the Kremlin's Cold War." He has studied extensively in Soviet and American archives and has taught classes on the Cold War at Amherst College, Ohio University in Athens and Stamford University. In 1993, Zubok was employed by the Kennan Institute for Advanced Russian Studies in Washington, and since then has worked at the Norwegian Nobel Institute in Oslo and is now a fellow at the National Security Archive in Washington.

Blanton is executive director of the National Security Archive in Washington. The NSA is a non-governmental research institute providing information from U.S. government and official archives for scholars, journalists, members of Congress, lobbyists and others. Their research teases out documents still classified to give a complete picture of what really happened.