PANTHEON
ExploreBuild My Library
© 2026 Pantheon — an atlas of the ideas that shaped how we think.
person1960s-2020s

Daniel Ellsberg

Summary

Daniel Ellsberg (1931–2023) was an American military analyst who leaked the Pentagon Papers—a classified study of US decision-making in Vietnam—to the press in 1971, in the most consequential act of national security whistleblowing in American history.

Core Contribution

Pentagon Papers leak exposed systematic government deception about Vietnam; established the legal and moral precedent for national security whistleblowing.

Key Spikes & Highlights

  • Pentagon Papers
  • whistleblowing
  • Vietnam War
  • civil disobedience

Notable Works & Achievements

Secrets: A Memoir of Vietnam and the Pentagon Papers

The Doomsday Machine

Historical Influences

Henry David Thoreau civil disobedience tradition antiwar movement

Intellectual Lineage

RAND Corporation Vietnam-era antiwar movement civil disobedience

Contemporaries & Peers

Henry Kissinger Robert McNamara

Minds Influenced

Edward Snowden Chelsea Manning national security whistleblowing

Intellectual Posterity

No conceptual posterity found.

Discussing

Daniel Ellsberg

Ask anything about Daniel Ellsberg — their ideas, influences, contradictions, legacy.

Sign in to start a conversation.