"2012-10-05Z"^^ . "1958-04-30Z"^^ . "Executive Secretary of the Department of State" . . . "2006-06-16Z"^^ . . "Stephen D. Mull (born April 30, 1958) is a Senior Foreign Service officer who previously served as United States Ambassador to Poland, Acting Assistant Secretary of State for Political-Military Affairs and United States Ambassador to Lithuania.On September 18, 2015, Mull was appointed as the United States Lead Coordinator for Iran Nuclear Implementation, tasked with carrying out the terms of the Joint Comprehensive Plan of Action by United States Secretary of State John Kerry."@en . . "Stephen Mull"@en . "2015-08-29Z"^^ . . . . "2012-11-08Z"^^ . . . . "American diplomat" . "2003-08-26Z"^^ . "United States Ambassador to Poland" . "2008-08-11Z"^^ . "1958Z"^^ . "United States Ambassador to Lithuania" . "2009-06-21Z"^^ . "Assistant Secretary of State for Political-Military Affairs" . "Mull, Stephen"@en . "2007-01-11Z"^^ .