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The Cipher Brief: National Security news, analysis and expert commentary.

The Golden Dome Gamble: Space-Based Defense and the Future of Deterrence

Navigating the challenges to a split-second kill decision that could protect the U.S. homeland

The Golden Dome Gamble: Space-Based Defense and the Future of Deterrence

CIPHER BRIEF REPORTING – The missile threat against the U.S. has quietly and significantly grown over the past four decades as U.S. adversaries have [...] More

The Open Source Report

A US Air Force C-17A Globemaster aircraft is seen after landing at Luis Muñoz Marín International Airport in Carolina, Puerto Rico, on September 8, 2025.

US-POLITICS-DEFENSE-PUERTO RICO

Top Pentagon officials visit Puerto Rico as tensions with Venezuela soar

US demands EU stops buying Russian gas if it wants new sanctions on Putin

Israel's Netanyahu warns Gaza City residents to 'leave now'

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Expert Insights

Cipher Brief Experts bring context to today’s global events

A Test of Limits: Posse Comitatus and the National Guard

Walter Pincus

OPINION — “At the June 7, [2025] briefing, [Army North's Contingency Command Post Deputy Chief of Staff] Mr. [William] Harrington stated -- based on his experience and training within the Department of Defense -- ‘if any [...] More

A Dangerous Precedent: What Happens If Military Lawyers Go Silent

Geoffrey Corn

OPINION / EXPERT PERSPECTIVE – When the U.S. launched a military attack against a speed boat traveling in international waters between Venezuela and Trinidad-Tobago, President Trump told reporters that the operation [...] More

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News & Analysis

Myanmar’s Civil War Is Tearing the Country Apart

Myanmar’s Civil War Is Tearing the Country Apart

CIPHER BRIEF REPORTING – The military government ruling Myanmar designated a significant ethnic rebel group as a terrorist organization on Thursday, [...] More

Opinion

A Profound Loss: How Veteran Suicide Touches Us All

The Hidden Costs We All Share Kristin Wood and Sarah Kneller are Co-Founders of August Interactive. They have spent much of the last two years [...] More

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What’s on The Cipher Brief’s Digital Channel

“Putin has drastically overplayed his hand”

Interview with former Senior CIA Officer Ralph Goff

The Problem with Iran’s Proxies

Interview with Glenn Corn, Former Senior CIA Officer

Lessons from Israel’s Stunning Intelligence Operation

Interview with Beth Sanner, Former Deputy Director for National Intelligence, ODNI

Book Reviews

GIMME SOME SPACE: After nearly six years at the helm of the Space Development Agency, Derek Tournear is making an exit, leaving behind projects like satellite mega-constellations and laser links. The SDA isn’t saying why, just that he’s off to a “new opportunity.” In the meantime, Deputy Director Gurpartap “GP” Sandhoo gets to keep the chair warm as acting director.The Dead Drop is now updating throughout the week. Why? Because there's just too much good gossip in the national security world these days for a once-a-week collection. BRING ON THE DEPARTMENT OF WAR: On Friday afternoon – as had been rumored for a while, [...] More

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Events

Live Events

Threat Conference

39days 03hrs 38mins 15secs

Threat Conference

The Cipher Brief Threat Conference is the nation’s premier forum for non-partisan discussion of global threats and solutions as well as high-level [...] More

Upcoming: 19 October, 2025

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Podcasts

State Secrets


In this wide-ranging conversation, former CIA senior leader Sheetal Patel warns about the vulnerabilities the U.S. faces from evolving drone threats, drawing lessons from Ukraine’s successful deep-strike operations against Russia. She highlights the lack of clear authorities, resources, and interagency coordination for defending against small drone swarms in America. Patel also stresses the crucial role of the private sector in rapidly advancing both drone and counter-drone technologies and underscores the growing counterintelligence risks U.S. companies face from foreign adversaries like China. The discussion extends to U.S.–India relations, where recent tariffs threaten to undermine years of strategic progress against Chinese influence.

Cover Stories: Spies, Books & Entertainment


Author and former Marine Elliot Ackerman’s latest tale is about an ex-CIA Ground Branch operator who goes by his call sign, “Skwerl” and a former Afghan special ops pilot who goes by the name “Big Cheese” so you’re probably already getting a good picture of Ackerman’s latest novel Sheepdogs, which follows Skwerl and Cheese on a globe-trotting adventure from Uganda to Marseille. Cipher Brief CEO & Publisher Suzanne Kelly welcomed Ackerman to the Cover Stories Studio to talk about missing handlers, hidden cargo and shadow war.