In the darkest days of the Cold War, the United States and Soviet Union created, together, a way to control nuclear weapons. As the President Trump withdraws from the hallmark INF treaty and other agreements teeter on the brink, that system is on life support. How did we get here? Jen Psaki talks to Pranay Vaddi and Connor O'Brien about how to save arms control.

While the loud, public conflict between the United States and Iran rages on, a secret war has been waged in the shadows for years. How dangerous is the cyberwar between the two countries? And how has the digital battlefield changed? Jen Psaki talks to Jon Bateman about the tools and strategies of both countries have developed, and what an all-out cyberwar would look like.

As Boris Johnson gears up for a probable victory in the British leadership election, can he deliver the Brexit deal that Theresa May failed to achieve? And what's the status of the U.S.-UK relationship after Trump's spat with now former British ambassador Sir Kim Darroch? Jen Psaki talks to Peter Kellner about May's legacy, the future of Brexit, and Johnson's promised trade deal with Trump.

Read more:

Facial recognition has moved beyond matching two grainy photos. Abundant, networked cameras, cheap data storage, and powerful AI has made biometric surveillance more invasive than ever. China has built a massive surveillance state designed to monitor and incarcerate Uighur Muslims in the Xinjiang region, and now Chinese firms are trying to sell those same tools to countries in the Gulf. But they're not alone. U.S. firms, like IBM, Amazon, and Microsoft, also spy a lucrative new market. Jen talks to Buzzfeed's Megha Rajagopalan about how this technology has changed, how it is being used around the world, and how it might be regulated.

Read more of Megha's reporting:

Donald Trump just became the first sitting U.S. president to set foot inside North Korea. How did we get here? Is Trump's cozy relationship with Kim Jong-un enough to get a deal done? And what's going to happen next? Jen talks to Carnegie expert Toby Dalton about how to keep track of the dizzying roller coaster of the U.S.-North Korea relationship.

The people of Hong Kong have taken to the streets in the largest protests the city has ever seen. A controversial extradition treaty sparked demonstrations that have lasted for weeks, but now that the bill has been withdrawn, what's keeping protesters on the streets? What does Hong Kong’s long-simmering dispute with Beijing boil down to? And what does the showdown between protestors and Hong Kong’s leaders mean for the city’s future? Jen talks to CNN's Kristie Lu Stout to get a sense of how things look on the ground.

Khartoum erupted in violence on June 3, as its transitional military government attacked and killed more than 100 peaceful protestors. But didn’t Sudan just oust a dictator? What’s happened since then? And what can the international community do help avoid a humanitarian catastrophe?

Jen talks to Amr Hassan Sayed about Sudan's protests, the complicated political forces colliding on the ground, and how the civilian protestors are learning the lessons of the Arab Spring

White supremacist terrorism has gone global. Racially motivated mass murderers have targeted Muslims worshipping in New Zealand, Jewish synagogues in Pittsburgh and San Diego, church goers in South Carolina, and kids at a summer camp in Norway. Many of these attackers were radicalized online, and have claimed inspiration from each other. Are we watching the rise of a new international terrorist network? And what tools do we need to fight it? Jen talks to Lisa Monaco, who served as President Obama’s homeland security adviser, about how the United States should apply the lessons learned in fighting other terrorist networks

The United States is negotiating with the Taliban to end the longest war in U.S. history. But this isn’t the first time we’ve been at the table with them. What keeps us mired in this long, bloody, and complicated conflict? And is there actually a path out of it? Jen talks to Jarrett Blanc, who led negotiations with the Taliban as the Obama administration’s acting Special Representative to Afghanistan and Pakistan, about what the Trump administration is getting right.

Production assistance on this episode comes from Douglas Farrar

As women of color take the lead in national security, how are they changing the conversation and the culture of the foreign policy community? Jen talks to Mareena Robinson Snowden and Bonnie Jenkins about their careers in nuclear policy, how more diverse voices lead to better policy outcomes, and how the culture of the national security community must grow to better foster inclusion and representation.

Follow Bonnie Jenkins' organization, Women of Color Advancing Peace (WCAPS) on Twitter at @WCAPSnet, and online at wcaps.org

Production assistance on this episode comes from Alma Burke