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

CIA Deaths Expose Fragile U.S.-Mexico Security Ties

The deaths of two CIA officers highlights a growing U.S. intelligence footprint in cartel territory - and the political backlash it’s triggering in Mexico City.

Woman speaking at podium with Mexican seal, flag, and artwork in background.

Around two o’clock in the morning of April 19, an SUV veered off a twisting dirt road in a remote corner of the Sierra Madre, plunged into a ravine [...] More

Open Source Report logo

The Open Source Report

TOPSHOT - US President Donald Trump (R) and Russian President Vladimir Putin shake hands at the end of a joint press conference after participating in a US-Russia summit on Ukraine at Joint Base Elmendorf-Richardson in Anchorage, Alaska, on August 15, 2025. (Photo by Drew ANGERER / AFP via Getty Images)

Global Intelligence Report for Thursday, April 30, 2026

Trump presses Putin on Ukraine, turns down Iran nuclear offer in “very good” call

U.S. military commander to brief Trump on new military options against Iran

U.S. seeks to deploy hypersonic missile for the first time against Iran

Trump weighs pulling some U.S. troops from Germany in spat with Chancellor


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Expert Insights

Cipher Brief Experts bring context to today’s global events

Houthi's are Positioned to Close the Bab el-Mandeb Strait

Chip Usher

OPINION — Despite suffering heavy losses to combined U.S.-Israeli military strikes, the Iranian regime remains defiant. It’s recent reluctance to send a delegation to Islamabad to resume talks with the U.S. was not—as [...] More

Pyongyang’s Bet: Nuclear Growth and Great Power Support

Ambassador Joseph DeTrani

OPINION – North Korea is building more nuclear weapons and more sophisticated ballistic missiles to target the region and the U.S., while ensuring that they are closely aligned with China and Russia. Basically, North [...] More

News & Analysis

Silhouette of towers against a vibrant orange sunset sky.

From Chernobyl to Ukraine: The Enduring Cost of Kremlin Lies

In April 1986, a reactor exploded at Chernobyl and the Soviet Union lied about it. That instinct to conceal, distort, and deny did not just worsen [...] More

Opinion

Pakistan’s Terror Landscape Continues to Threaten South Asia

OPINION — In March 2025, an elderly cleric with a long history in Pakistan’s jihadist circles stood before a gathering at Markaz-e-Taiba and called [...] More

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Book Reviews

SOFT PEDAL POWER: As President Trump gets ready to head to Beijing for a May 14-15 summit, the Wall Street Journal is recalling a warmer era. In 2005, the National Security Council’s Asia director Dennis Wilder was working on plans for a summit meeting in China between Presidents George W. Bush and Hu Jintao. Wilder knew that Bush was a passionate mountain biker and thought it might be fun to have Bush take a ride on Beijing's Olympic course which was being built for the 2008 Games. Small problem: Wilder checked with the CIA, which had satellite photos of the site and it looked like construction hadn't even started. So, [...] More

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Events

Live Events

2026 Threat Conference

2026 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: 25 October, 2026

Podcasts

State Secrets

What does “success” look like in a conflict with Iran - and what comes next? In this in-depth conversation, General David Petraeus joins The Cipher Brief’s Suzanne Kelly to unpack the military and strategic realities shaping today’s most consequential conflicts. From the importance of reopening the Strait of Hormuz to the unresolved risks around Iran’s nuclear program, Petraeus explains what’s at stake not just for the U.S., but for the global economy. But the real story? Ukraine. Petraeus calls it the true test case for the future of war - where drones, autonomy, and rapid innovation are redefining the battlefield in real time.