The fifth in a series of security validators for APN is Condoleezza Rice, an American political scientist and diplomat. Rice served as the 66th United States Secretary of State, and was the first female African-American to hold that position, as well as the second African American secretary of state, and the second female secretary of state. Rice was President Bush's National Security Advisor during his first term, making her the first woman to serve in that position. Before joining the Bush administration, she was a professor of political science at Stanford University where she served as Provost from 1993 to 1999. Rice also served on the National Security Council as the Soviet and Eastern Europe Affairs Advisor to President George H.W. Bush during the dissolution of the Soviet Union and German reunification.