His Excellency Antonio de Aguiar Patriota, Brazilian Ambassador to the
United States of America

March 4, 2008

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Her Excellency Barabara J. Masekela
Ambassador of South Africa to the United States of America

November 8, 2006

His Excellency Christian Blickenstorfer, Ambassador of Switzerland to
the United States.

His Excellency Said Tayeb Jawad
Ambassador of Afghanistan to the United States of America

April 6, 2005

His Excellency Jose Octavio Bordon
Ambassador of the Argentine Republic to the United States of America

September 28, 2004