Former Arizona Governor Janet Napolitano was in her second term when she was asked to join the incoming Obama administration as Homeland Security Secretary. She led the agency for nearly five years, and now she’s written a book about her experiences. It’s her own report card of sorts about the current state of U.S. national security and the more border-focused role of DHS under the Trump administration. Napolitano is on a book tour and will make a stop tonight in Flagstaff. She spoke with KNAU’s Ryan Heinsius.