Explore every episode of the podcast Sources & Methods

A German spy chief is arrested for treasonous espionage. What exactly is he accused of doing? Also, two tech billionaires are leading the Pentagon’s future of war project. Is that a problem?

NPR's Mary Louise Kelly speaks with Esme Nicholson in Berlin about the case against August Hanning, and with NPR's Tom Bowman about how bases housing U.S. troops around the world could be vulnerable to drones.

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For the second time since the 2003 invasion, the last American troops have left Iraq.

Host Mary Louise Kelly speaks with NPR International Correspondent Jane Arraf who is in Baghdad to see how Iraqis are greeting the moment. And NPR Pentagon Correspondent Tom Bowman explains how this withdrawal and the ongoing war with Iran are changing the U.S. footprint in the region. He also discusses Defense Secretary Pete Hegseth's "State of the Force" address.

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Russia threatens attacks beyond Ukraine's border and rattles Europe. Is it ready?

This month Poland Prime Minister Donald Tusk warned about intelligence assessments suggesting that Russia is planning drone and missile strikes against countries that support Ukraine, including Poland and Romania.

How serious is that threat? And if that happens, is NATO ready to defend itself? 

Would the U.S. honor its NATO collective defense commitments and jump in to help? 

Those are some questions host Mary Louise Kelly put to Romania's Foreign Minister Oana-Silvia ?oiu and Poland’s Deputy Prime Minister and Foreign Minister Radoslaw Sikorski. 

The conversation took place on the sidelines of the United Nations General Assembly before a live audience at the Council of Foreign Relations in New York City. 


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President Trump used his speech at the United Nations General Assembly to attack the principles the organization is built on. Does the U.N. stand a chance in a new era of great power rivalry?

Host Mary Louise Kelly speaks with NPR Diplomatic Correspondent Michele Kelemen about what happened this week when leaders from around the world came to New York at a precarious moment for the U.N. And NPR White House reporter Emily Feng explains what to look for during the diplomatic event that overshadowed the U.N. meeting this week: Chinese President Xi Jinping's state visit in Washington.

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All a sudden everyone is talking about the risk of an AI catastrophe or, in the case of President Trump, an AI "hoax."

Host Mary Louise Kelly talks with NPR Cybersecurity Correspondent Jenna McLaughlin about the risks cyber experts are worried about already. And NPR White House Correspondent Emily Feng explains why a global agreement on AI guardrails to protect against future existential risks looks elusive.

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National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. 


With decades of reporting from battlefields and the halls of power, they bring you inside the Pentagon, State Department, and intelligence community to help you understand America's shifting role in the world, and how events in faraway places matter here at home. Additional episodes feature interviews with power players from the NatSec world -- current and former military officials, intelligence experts, diplomatic leaders, and more. 


Email the show at sourcesandmethods@npr.org. 


NPR+ supporters hear every episode sponsor-free and can access our complete archive. Learn more and support public media at plus.npr.org.

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