Henry Nau, Rowan Scarborough, Diana West, Bill Gertz

HENRY NAU discusses how the themes of his new book, "Conservative Internationalism: Armed Diplomacy Under Jefferson, Polk, Truman, and Reagan," relate to the modern era. He argues that Western nations should make priorities for which countries they should focus on promoting freedom within.

ROWAN SCARBOROUGH, of the Washington Times, delves deeper into his article about the Pentagon's preoccupation with social issues in the military.

DIANA WEST, author of "American Betrayal," talks about the difficulties that arise when the US and its allies try to conduct affairs in a "Western" way in the Islamic world.

BILL GERTZ, of the Washington Free Beacon, offers his thoughts on a recent New York Times article that claimed Al-Qaeda was not responsible for the deadly 9/11/12 attack in Benghazi.