U.S. Assistant Secretary of State for Economic and Business Affairs Charles Rivkin Travels to Vietnam Press Releases Uncategorized U.S. Assistant Secretary of State for Economic and Business Affairs Charles Rivkin Travels to Vietnam adminDC May 27, 2015 0 SOURCE: U.S. State Department Assistant Secretary of State for Economic and Business Affairs Charles Rivkin Travels to... Read More Read more about U.S. Assistant Secretary of State for Economic and Business Affairs Charles Rivkin Travels to Vietnam