Duke University political science professor Bruce Jentleson has served as a foreign policy adviser to former Vice President Al Gore and to the State Department, and is currently advising the Obama campaign on national security issues. He’s in Missoula to lecture at the University of Montana. In this feature interview, Jentleson talks with News Director Sally Mauk about America’s new role in the world. One foreign policy issue that came up in the most recent presidential debate is what led to the murder of the U.S. ambassador to Libya, Chris Stevens. Jentleson says the incident raises a number of issues…