Jump to search Jump to main navigation Jump to main content Jump to footer navigation

Global Security Newswire

Daily News on Nuclear, Biological & Chemical Weapons, Terrorism and Related Issues

Produced by
NationalJournal logo

Scientist Pleads Guilty in Nuclear Spy Case

A one-time Los Alamos National Laboratory scientist and his spouse confessed in court on Friday to attempting a sale of U.S. nuclear-weapon secrets to Venezuela, the Albuquerque Journal reported.

Physicist Leonardo Mascheroni, 77, and his wife, Marjorie Roxby Mascheroni, respectively face minimum prison terms of 12 months and 24 months for supplying classified weapons information to a federal agent posing as a Venezuelan operative.

The United States has not officially suggested Venezuela was seeking classified data, the Associated Press reported.

Note to our Readers

GSN ceased publication on July 31, 2014. Its articles and daily issues will remain archived and available on NTI’s website.

NTI Analysis

  • Visualizing Centrifuge Limits Under the Iran Deal

    June 25, 2015

    Iran is currently negotiating a nuclear agreement in Vienna with representatives of the so-called E3/EU+3. A major feature of any agreement will be the limits it places on the number and type of centrifuges that Iran is allowed to use. Visualize the numbers with and without a comprehensive agreement.

  • 2015 NPT Review Conference Backgrounder

    May 4, 2015

    This primer provides background on some of the key issues being discussed during the 2015 NPT Review Conference and recommendations made by more than 100 global leaders.

Country Profile

Flag of United States

United States

This article provides an overview of the United States’ historical and current policies relating to nuclear, chemical, biological and missile proliferation.

Learn More →