RSI EnTech, based in Oak Ridge, Tenn., has acquired Albuquerque-based Sigma Science, another well-known small contractor with the Department of Energy nuclear complex, the companies announced recently.
RSI EnTech, which is part of Arctic Slope Regional Corporation…
Weapons Complex Monitor Vol. 36 No. 29
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Weapons Complex Monitor
Article 4 of 9
July 24, 2025
Two nuclear vendors combine as RSI buys Sigma Science
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NEW: Via public records request, I’ve been able to confirm reporting today that a warrant has been issued for DOE deputy asst. secretary of spent fuel and waste disposition Sam Brinton for another luggage theft, this time at Las Vegas’s Harry Reid airport. (cc: @EMPublications)
DOE spent fuel lead Brinton accused of second luggage theft.
by @BenjaminSWeiss, confirming today's reports with warrant from Las Vegas Metro PD.
Waste has been Emplaced! 🚮
We have finally begun emplacing defense-related transuranic (TRU) waste in Panel 8 of #WIPP.
Read more about the waste emplacement here: https://wipp.energy.gov/wipp_news_20221123-2.asp
Editorial: Sam Brinton’s credibility is now an issue 🔓