Has the reduction of nuclear weapons in the post-Cold War world gone according to the original plans? Listen in to a debate on that subject, 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 former U.S. National Security Council member Condoleeza Rice consider the long-term impact of the nuclear legacy in Russia and Eastern Europe -- as well as whether the United States still needs a large nuclear arsenal.

Rice is provost at Stanford University. For two years she served as the National Security Council's senior director for Soviet affairs and as a special assistant to U.S. President George Bush. As such, she was part of the administration that oversaw the end of the Cold War.

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 for 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.