• Research
  • Diwan
  • About
  • Experts
Carnegie Middle East logoCarnegie lettermark logo
LebanonIran
{
  "authors": [
    "James M. Acton"
  ],
  "type": "other",
  "centerAffiliationAll": "dc",
  "centers": [
    "Carnegie Endowment for International Peace"
  ],
  "collections": [],
  "englishNewsletterAll": "ctw",
  "nonEnglishNewsletterAll": "",
  "primaryCenter": "Carnegie Endowment for International Peace",
  "programAffiliation": "NPP",
  "programs": [
    "Nuclear Policy"
  ],
  "projects": [],
  "regions": [
    "United Kingdom"
  ],
  "topics": [
    "Nuclear Policy"
  ]
}

Source: Getty

Other

Balancing the Books: Production and Stocks

While Britain is contributing productively to disarmament efforts, its fissile material records should be more transparent. A better means of tracking fissile materials is imperative as the world pursues mechanisms to verify nuclear weapons reductions.

Link Copied
By James M. Acton
Published on Oct 29, 2010

Source: IPFM Report

In Chapter 5 of the International Panel on Fissile Material's 2010 report, Global Fissile Material Report 2010: Balancing the Books: Production and Stocks, Carnegie's James Acton and co-authors account for the United Kingdom's holdings of plutonium and highly enriched uranium (HEU). Although the United Kingdom has released more information about its fissile material stockpiles than any other state apart from the U.S., significant uncertainties about its acquisition and use of plutonium and HEU remain—not least because important details of transactions with the United States remain classified.

In spite of these difficulties, Acton and his co-authors are able to present the most detailed accounting of UK military fissile materials available in the public domain, including a comprehensive analysis of its naval reactor program. They advocate for more detailed reports on the United Kingdom's fissile materials and argue that as the United Kingdom decommissions its production facilities there will be a valuable opportunity for international verification.

About the Author

James M. Acton

Jessica T. Mathews Chair, Co-director, Nuclear Policy Program

Acton holds the Jessica T. Mathews Chair and is co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace.

    Recent Work

  • Other
    Unpacking Trump’s National Security Strategy
      • Cecily Brewer
      • +18

      James M. Acton, Saskia Brechenmacher, Cecily Brewer, …

  • Commentary
    Trump Has an Out on Nuclear Testing. He Should Take It.

      James M. Acton

James M. Acton
Jessica T. Mathews Chair, Co-director, Nuclear Policy Program
James M. Acton
Nuclear PolicyUnited Kingdom

Carnegie does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.

More Work from Malcolm H. Kerr Carnegie Middle East Center

  • Commentary
    Diwan
    Anatomy of a Military Fall

    Why did Bashar al-Assad’s armed forces fail to act, unlike those in Egypt, Libya, Algeria, and Sudan?

      Yezid Sayigh

  • Commentary
    The Gaza War and the Rest of the World

    Scholars from Carnegie’s global network comment on how the ongoing conflict between Israelis and Palestinians is affecting their areas of interest, and what the implications of this may be.

      • +11

      Maha Yahya, Rosa Balfour, Judy Dempsey, …

  • Commentary
    Diwan
    Eye on the Ball

    Gulf Arab investors, European football clubs, and the Roman Abramovich factor

      Issam Kayssi

  • Commentary
    How Tehran Is Connecting the Ukraine Invasion to the Iran Deal

    Both events also could force Washington to rethink or revive its Middle East partnerships.

      Karim Sadjadpour

  • Commentary
    Diwan
    A Ticking Time-Bomb?

    Disagreement between the United States and Iran over a revived nuclear accord may anchor volatile competition.

      George Perkovich

Get more news and analysis from
Malcolm H. Kerr Carnegie Middle East Center
Carnegie Middle East logo, white
  • Research
  • Diwan
  • About
  • Experts
  • Projects
  • Events
  • Contact
  • Careers
  • Privacy
  • For Media
Get more news and analysis from
Malcolm H. Kerr Carnegie Middle East Center
© 2026 Carnegie Endowment for International Peace. All rights reserved.