MIT Professor of Nuclear Security Vipin Narang on the global buildup of nuclear weapons.

Severine Autesserre on her new book “The Frontlines of Peace" and changing the world.

CSIS fellow Jon Hillman on his new book “The Emperor’s New Road” and relations with China

Information warfare expert Molly McKew on foreign interference in US elections.

Wired reporter Andy Greenberg discusses the next wave of Russian cyber crimes.

Julie Salamon on her new book “An Innocent Bystander” and the redefinition of terrorism.

Quincy Institute cofounders Trita Parsi and Stephen Wertheim on stopping endless war.

Columbia University Center for Energy Policy’s Richard Nephew on sanctions and tariffs.

KPBS investigative reporter Jean Guerrero on her new book “Crux: A Cross-Border Memoir.

Jeffrey Prescott of National Security Action on an alternative to Trump's foreign policy.

Tom Nichols, U.S. Naval War College professor, on his book “The Death of Expertise.”

Yascha Mounk on “The People vs Democracy: Why Our Freedom is in Danger and How to Save It”

Jamie Fly and Laura Rosenberger of the Alliance for Securing Democracy on Russia and US.

Scholar Amy Knight on her new book "Orders to Kill: The Putin Regime and Political Murder"

Author Hesh Kestin on U.S.-Israel relations; moving from foreign correspondent to novelist

Ambassador of the UAE to Russia Omar Saif Ghobash on his book "Letters to a Young Muslim"

Ken Roth, executive director, Human Rights Watch, on securing liberty at home and abroad.

Creator of FX's The Americans Joe Weisberg on Russian espionage, fact and fiction.

Kenneth Wollack, of the National Democratic Institute, on civil society amid incivility.

Ahmed Shihab-Eldin, HBO VICE Correspondent, talks about reporting from the Middle East.