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  1. Retweeted
    Sep 7

    Story out now. I went to Pyongyang to meet the officials in charge of assessing Trump and America's intentions.

  2. Sep 7
  3. Retweeted
    Sep 2

    Video with more images from Kim Jong Un's visit

  4. Retweeted
    Sep 2

    Event 1st Analysis: 03-SEP-2017 03:30:06 LAT=41.3 LON=129.1 D=32 mb=5.8 ML=5.3 ndef=38 nsta=37 dist=6 (di6/10 t1.3/1.8 de33/0)

  5. Retweeted
    Sep 2

    Unusual signal larger than prior declared tests . Auto-Detection by 34 stations so far: Work in progress Analysts.

  6. Retweeted
    Sep 2
  7. Retweeted
    Sep 1

    Congratulations to Rod Ewing, who is CISAC's new co-director for the sciences: story and bio

  8. Retweeted
    Aug 29

    CISAC fellow Anna Péczeli's article, "Best Options for the Nuclear Posture Review," just published:

  9. Retweeted
    Aug 28

    North Korea fired a ballistic missile over Japan, the South Korean military said

  10. Aug 18

    My latest on the history of nuclear diplomacy with North Korea and what the U.S. should do next

  11. Retweeted
    Aug 17

    CISAC's Rochelle Terman won the '17 Merze Tate Award for top dissertation in international relations, law & politics

  12. Retweeted
    Aug 17

    A good look at analysis from , , and on diplomatic options & objectives

  13. Retweeted
    Aug 17

    Apply for the Asia-Pacific Nuclear History Bootcamp scheduled for March 2018.

  14. Aug 17
  15. Aug 9

    My colleagues and I recently assessed 's stockpiles of fissile material as of Dec 2016

  16. Retweeted
    Aug 8

    Learn more about the history of nuclear weapons and the danger of nuclear brinkmanship from my free online course

  17. Retweeted
    Aug 8

    JUST IN: On North Korea POTUS says they "best not make anymore threats...they will be met with fire and fury like the world has never seen."

  18. Retweeted
    Aug 8

    Scott Sagan found that public opinion is unlikely to curb a U.S. president’s use of nuclear weapons in war

  19. Retweeted
    Aug 8
  20. Retweeted
    Aug 7

    Recent missing radioactive source in Mexico highlights need to secure/track sources in transit.

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