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History & Lessons Learned

What earlier operations, crises, failures, and acts of courage can still teach us now.

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Briefing work

At the briefing table

Current assessments and intelligence-style work connected to this subject.

Watch Floor Brief

What AQIS Wants the Next Generation to Learn From 9/11

AQIS is using the 25th anniversary of 9/11 to explain to a younger audience why it believes America should remain the priority and to connect September…

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Watch Floor Brief

10 Warnings Buried in Congress’s New 9/11 Report

Twenty-five years after 9/11, the House Intelligence Committee reviewed what the U.S. fixed, what remains unfinished, and where new intelligence gaps may be forming. These are…

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Watch Floor Brief

Abbey Gate: The Twelve Days Before the Bomb

Five years after the Abbey Gate bombing, this brief reconstructs the twelve days before the attack: the authorization, the bomber’s release and movement, the network around…

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Watch Floor Brief

Five Years After Kabul, History Is Repeating Itself

Five years after Kabul fell, Afghanistan should not be understood simply as the end of America’s longest war. It marked the beginning of another cycle in…

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Watch Floor Brief

Ebola Returns: What Worked Last Time and What Didn’t

The return of Ebola to international headlines is a reminder that some threats never disappear; they simply fade from public attention until conditions allow them to…

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Watch Floor Brief

Cuba at the Breaking Point: Law, Pressure, and the Next Phase of U.S. Strategy

The recent federal indictment of former Cuban leader Raúl Castro over the 1996 shootdown of two civilian aircraft operated by Brothers to the Rescue is being…

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Watch Floor Brief

FBI Entrapment Operations and Terrorist Recruitment: A Dangerous Feedback Loop

The Federal Bureau of Investigation (FBI) continues to rely on controversial entrapment operations as a core component of its counterterrorism strategy—a practice increasingly criticized for targeting…

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Watch Floor Brief

U.S. Hostages and the Cost of Inaction

New reporting from June 15th, 2025, has reignited outrage over the fate of missing American journalist Austin Tice, who disappeared in Syria in 2012. According to…

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Watch Floor Brief

Riyadh Revisited: Lessons from a Complex Attack and Implications for Homeland Defense

On this date in 2003, a series of coordinated suicide bombings struck residential compounds in Riyadh, Saudi Arabia, targeting Western nationals. Orchestrated by al-Qaeda, these attacks…

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Watch Floor Brief

Underestimating the Enemy: Lessons from Pearl Harbor and Beyond

As we approach the anniversary of the attack on Pearl Harbor, it is crucial to reflect on the enduring lessons of that fateful day. On December…

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Watch Floor Brief

Understanding the Origins and Rationale Behind the 2017 Travel Restrictions

Last Saturday, October 26th, after former President and current Republican nominee Donald J. Trump received endorsements from elements of Michigan’s Muslim community, misinformation resurfaced regarding the…

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Watch Floor Brief

One Year After October 7: Exposing the Gaps in U.S. Intelligence

Today, on the one-year anniversary of the October 7th, 2023, attacks in Israel, the profound implications of this tragedy become increasingly clear. The attacks, executed by…

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Watch Floor Brief

The Unintended Consequence: How U.S. Post-9/11 Strategy Strengthened al-Qaeda

In the aftermath of the 9/11 attacks, the United States undertook an unprecedented restructuring of its counterterrorism and national security infrastructure. This response resulted in the…

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Watch Floor Brief

Al-Qaeda: A Comparative Assessment of Its Global Reach and Capabilities from 2001 to Today

August 28, 2024 Introduction This analysis compares al-Qaeda's leadership, global presence, operational capabilities, financial networks, ideological influence, relationship with the Taliban, recruitment strategies, and alliances in…

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Watch Floor Brief

Strategic Implications of Abandoned U.S. and ISAF Military Bases in Afghanistan

The withdrawal of U.S. and International Security Assistance Forces (ISAF) from Afghanistan in 2021 has left behind a network of military and intelligence bases that offer…

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Watch Floor Brief

Legacy of the 1983 Beirut Marine Barracks Bombings: Unfinished Justice

On July 30, 2024, senior Hezbollah military commander Fuad Shukr aka Hajj Mohsin was killed in an Israeli airstrike on a residential building in a Hezbollah…

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Research & source work

Go deeper

Investigations, reports, letters, source work, and earlier research that add context.

Investigation / Report

Abbey Gate: Know Thy Enemy 2.0

An expanded investigation into the attack at Abbey Gate, the network behind it, and the compressed plotting window that preceded it.

Open investigation
Earlier Work

The Benghazi Mortar Team’s Identities Revealed for the First Time

An investigation identifying members of the mortar team responsible for the attack on the CIA Annex in Benghazi.

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Earlier Work

The Hidden Truths of Benghazi: Lessons from September 10, 2012

Lessons from the intelligence gaps and interconnected jihadist networks that shaped the Benghazi threat environment.

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Earlier Work

On 9/11 We Should Also Remember the Benghazi Attack and the Planners Still at Large

A call to remember the Benghazi victims by continuing the work of identifying and pursuing the planners responsible.

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Outside publications

Published elsewhere

Magazine, journal, and outside publication work that belongs on this path.

Published Article · The Daily Wire · Analysis

The 9/11 Files Show America Heard The Warning And Missed The War

Newly declassified 9/11 files show that warnings about Osama bin Laden and attacks inside the U.S. were reaching the highest levels of government years before September…

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Published Article · The Daily Wire · Analysis

Congress Just Admitted A Key 9/11 Security Gap Remains

Twenty-five years after 9/11, one of the border-security reforms recommended by the 9/11 Commission remains unfinished: a comprehensive biometric entry-exit system.

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Published Article · Homeland Security Today

Why the Return of Tarnak Farm Matters

The rebuilding of a historic Al-Qaeda institution offers one of the clearest indicators of the organization’s resurgence.

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Published Article · ClearanceJobs

Know Thy Enemy: Former CIA Members Seeking Justice for Benghazi

An interview with Sarah Adams and Dave Benton about the investigation behind Benghazi: Know Thy Enemy and the continuing search for accountability.

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The Commons

Put it to work

Practical guidance from The Commons for turning lessons into capability.

Commons Guide

Sisu: Steady Strength for Difficult Days

A Nordic idea about courage, endurance, and taking the next useful step without pretending difficulty is easy.

Read the note
Commons Guide

The Gathering Storm: What Communities Carry Forward

A Commons companion to the collaborative book—focused on endurance, service, memory, and what communities owe one another after a long war.

Enter the conversation
Commons Guide

Sisu: Strength Without Noise

A Nordic note on courage, perseverance, adaptation, and taking the next useful step when the path becomes difficult.

Read the note
Commons Guide

Prepared, Not Afraid

A calmer approach to fear, judgment, and learning—plus books and resources that build confidence without feeding panic.

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Books & enduring work

From the shelves

Books, collaborations, and other enduring material that helps round out the subject.

Documentary collaboration · BLINX News

Why Al-Qaeda Killed Ahmad Shah Massoud Before 9/11

Two days before September 11, al-Qaeda assassinated Ahmad Shah Massoud. Sarah joins Ahmad Massoud to examine why his father posed such a threat to al-Qaeda and…

Watch on YouTube
Sarah's Shelf

The Troubled American Way of War

John Arquilla examines American military strategy from Hiroshima through the age of algorithms, including the growing role of information, computation, and AI.

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Television collaboration

Inside the CIA: Secrets & Spies

Sarah contributed to the National Geographic series and its episode examining the hunt for Taliban military commander Mullah Dadullah Lang.

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Foreword

Whispers of Survival

Sarah wrote the foreword to this study of war, trauma, and the making of civilian rescuers.

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Oral history contributor

Hoover Afghanistan Research and Relief Team

An oral-history project preserving firsthand accounts from people who experienced the war, rebuilding efforts, withdrawal, and Taliban takeover.

Explore HART
Book contributor

The Gathering Storm

A Pineapple Press project examining Afghanistan, the withdrawal, and the people who carried its consequences.

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Liza Mundy

The Sisterhood

Liza Mundy’s history of the women who transformed CIA operations, analysis, and modern targeting.

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Past initiative · Heart of an Ace

Art of War: Visions of the Afghan Experience

A preserved 2023 exhibition bringing together Afghan artists, veterans, and volunteers through art, storytelling, and the lived consequences of war.

Explore the collection
Book · Sarah Adams & Dave Benton

Benghazi: Know Thy Enemy

Sarah Adams and Dave “Boon” Benton reconstruct the Benghazi attacks, the network behind them, and the lessons that remain unfinished.

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Toby Harnden

First Casualty

Toby Harnden tells the story of Team Alpha, Mike Spann, and the first CIA mission sent into Afghanistan after September 11.

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Sarah Adams · SOFREP

Ukraine: The Art of War

Sarah Adams examines how Ukrainian artists documented war, preserved culture, countered disinformation, and used art to support a country under attack.

Read the article
Sonia Purnell

A Woman of No Importance

Sonia Purnell restores Virginia Hall’s extraordinary story of spycraft, resistance, and service during World War II.

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Fred Burton & Samuel M. Katz

Beirut Rules

Fred Burton and Samuel M. Katz examine the abduction and murder of CIA Station Chief William Buckley and the rise of Hezbollah’s war against America.

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David Priess

The President’s Book of Secrets

David Priess traces the history of the President’s Daily Brief and the people who have prepared and received it.

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Investigative team

House Select Committee on Benghazi

Contributed to the investigation and final report examining the events surrounding the 2012 terrorist attack in Benghazi.

View the final report
Henry A. Crumpton

The Art of Intelligence

Henry A. Crumpton reflects on clandestine service, counterterrorism, and the responsibilities of intelligence work.

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T. J. Waters

Class 11

T. J. Waters offers a firsthand account of joining the CIA’s first post-9/11 Clandestine Service training class.

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Gary Schroen

First In

Gary Schroen’s first-person account of the CIA team sent into Afghanistan after September 11.

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Ted Gup

The Book of Honor

Ted Gup investigates the lives behind the stars on the CIA Memorial Wall and the human cost of secret service.

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Hannah Adams · 1832

A Memoir of Miss Hannah Adams

Her own account of the work, hardship, friendships, and purpose that shaped her life as a writer.

Read at Project Gutenberg
Hannah Adams · 1812

The History of the Jews

One of Hannah Adams’s most substantial works, tracing Jewish history from antiquity to her own time.

Find an edition
Hannah Adams · 1799

A Summary History of New-England

A history from the settlement at Plymouth through the adoption of the United States Constitution.

Read the archive
Hannah Adams · 1784

A View of Religions

Hannah Adams’s pioneering comparative survey sought to describe religious communities in their own terms.

Read the archive

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