Question: Which cofounder of the Center for a New American Security served as a principal advisor to U.S. Secretaries of Defense Robert Gates and Leon Panetta?
Sentence (from "Center for a New American Security"): The Center for a New American Security (CNAS) is a Washington, D.C.-based think tank established in 2007 by co-founders Michèle Flournoy and Kurt M. Campbell.
Relevant evidence: Yes