Casillic
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Casillic
@casillic.bsky.social
Critical Infrastructure, High Consequence / High Integrity Systems, Space, Nuclear, Mathematics, Public Health, HPC
Reposted by Casillic
“Energy Secretary Chris Wright, National Nuclear Security Administration leader Brandon M. Williams and officials from the US National Laboratories are planning to inform the White House that they do not think blowing up weapons for nuclear warhead testing—as Trump suggested last month—is tenable …”
Exclusive: Department of Energy officials to meet with White House to tamp down Trump’s idea of explosive nuclear testing | CNN Politics
Top energy and nuclear officials in the Trump administration are planning to meet with the White House and National Security Council in the coming days to dissuade President Donald Trump from resuming...
www.cnn.com
November 14, 2025 at 6:25 PM
Los Alamos National Laboratory - National Security Science
Winter 2025 The Nevada Issue
cdn.lanl.gov/files/nss-wi...
November 13, 2025 at 10:49 PM
Answers from underground Subcritical experiments below the Nevada desert ensure reliable nuclear weapons!
www.lanl.gov/media/public...
November 13, 2025 at 10:27 PM
B61-12 flight tests yield positive results! Dual FB61-12 on F35 www.sandia.gov/labnews/2025...
November 13, 2025 at 7:04 PM
Reposted by Casillic
Today in 1974, Karen Silkwood’s white Honda Civic was apparently forced off a quiet highway in western Oklahoma where it crashed into a culvert, killing her instantly. Silkwood, 28, was employed as a technician at Kerr-McGee Nuclear Corporation’s plutonium fuel rod fabrication plant in Cimarron.
November 13, 2025 at 4:53 PM
Reposted by Casillic
The new book... exists!!! Got my author copies in the mail today! Looks quite readable! Spelled my name right on the cover, even!!!

harpercollins.com/products/the-most-awful-responsibility-alex-wellerstein
November 12, 2025 at 3:42 PM
Reposted by Casillic
Gift idea for the cat lover in your life, my hilarious Cat Operator’s Manual (with free stickers!)
Maybe your #secretsantaAoNZ recipient hints at being a feline fancier.
Available online and at Whitcoulls , Paper Plus and gift stores nationwide
cuddleUnit5.com
The Cat Operator's Manual - Get the Most from Your New Cuddle Unit
A fresh and quirky guide to understanding your cat, complete with technical information, warnings, insights into all of your Cuddle Unit 5™'s features and modes, and a bonus sticker sheet.
cuddleUnit5.com
November 11, 2025 at 10:12 PM
Watched Nuremberg today.
Thought it was pretty good.
November 9, 2025 at 8:39 PM
Describe your cat's personality with one photo
November 9, 2025 at 12:32 PM
Reposted by Casillic
Today in 1963, the “Twilight Zone” episode “The Old Man in the Cave” aired for the first time on CBS. Set in 1974, 10 years after a nuclear war, survivors in a remote town must choose whether to continue to follow the advice of their leader and an unseen old man or a cadre of newly-arrived soldiers.
November 8, 2025 at 5:32 PM
Reposted by Casillic
The US withdrawal from WHO could impact the flu shot.

Flu samples sent to CDC from around the world are down 60% this year, as of July.

"When those viruses are not coming in, we don't know what to put in the vaccine, and you're going to have less effective vaccines."
www.npr.org/sections/goa...
Why next year's flu shot might not be as good as it should be
America's withdrawal from the World Health Organization is affecting the ability of U.S. scientists to track flu and other pathogens. That could be a blow to the development of the 2025 flu vaccine.
www.npr.org
November 7, 2025 at 5:29 PM
Reposted by Casillic
OK, as promised, here's my thread about the links between tear gas/pepper spray and the arms trade and gun industry.
November 5, 2025 at 10:39 AM
Reposted by Casillic
Today in 1983, NATO began ABLE ARCHER 83, a European-wide nuclear weapons release exercise that paranoid Soviet leaders feared was a cover story for a nuclear first strike and “may have inadvertently placed our relations with the Soviet Union on a hair trigger.” nsarchive2.gwu.edu/nukevault/eb...
November 7, 2025 at 3:00 PM
Reposted by Casillic
By popular demand (read: maybe three people asked me) — some thoughts on Kathryn Bigelow's new film, "A House of Dynamite." TOTAL SPOILER ZONE, you have been warned! doomsdaymachines.net/p/bolt-out-o...
Bolt out of the blue
Kathryn Bigelow's "A House of Dynamite"
doomsdaymachines.net
November 7, 2025 at 10:07 PM
Reposted by Casillic
Today in 1971, the United States conducted CANNIKIN, its largest-ever underground nuclear test. A Spartan antiballistic missile carrying a W71 thermonuclear warhead was lowered into a 7.5-foot-wide, 5,873-foot-deep shaft beneath Amchitka Island, Alaska, and detonated. The yield was about 5 Megatons.
November 6, 2025 at 3:24 PM
Reposted by Casillic
The first photo of my new book, courtesy of my editor... "The Most Awful Responsibility: Truman and the Secret Struggle for Control of the Atomic Age" comes out in early December! Feel free to pre-order it today! www.harpercollins.com/products/the...
November 6, 2025 at 10:41 AM
Reposted by Casillic
F.D.A. Drug Unit Chief George Tidmarsh Is Placed on Leave, and Cites a ‘Toxic’ Environment www.nytimes.com/2025/11/02/h...
F.D.A. Drug Unit Chief Is Placed on Leave, and Cites a ‘Toxic’ Environment
www.nytimes.com
November 2, 2025 at 10:57 PM
Psst! Want to know a secret? US Tests its nuclear weapons all the time, just not w/ nuclear yield! Through Stockpile Stewardship program we scientifically verify nuclear deterrence is safe, secure, and effective. We should keep it that way because any alternative helps our adversaries!
October 30, 2025 at 8:14 PM
Passing through a gloomy looking Paris at CDG.
October 27, 2025 at 7:23 AM
Yummy but spicy lunch yesterday!
Note to future self no more spicy Thai the day before international flight! Also, make sure your passport is signed before you get in the security line.
October 26, 2025 at 4:34 PM
Reposted by Casillic
Today in 1973, in response to CIA reports that the Soviet Union was shipping nuclear weapons and troops to Egypt to intervene in the Yom Kippur War, Strategic Air Command, Continental Air Defense Command, European Command, and the Sixth Fleet all moved to DEFCON 3 for the first time since 1962.
October 25, 2025 at 1:37 PM
Reposted by Casillic
Reposted by Casillic
Thrilled today to release our big report on tactical nukes.

In writing up all of the effects, it was striking just how unprepared we would be to handle any of these scenarios—and how much the mere presence of these weapons add vulnerability to any crisis.

Quick thread on why TNW are so risky:
October 23, 2025 at 1:21 PM
Reposted by Casillic
Work to clean up long-lived radioactive waste at one of the world’s most polluted places took a big step forward last week, when a facility at a former nuclear weapons site in eastern Washington state began to entomb radioactive waste in glass. https://scim.ag/47fPwEp
Polluted weapons factory begins locking up nuclear waste in glass
After years of delay and political wrangling, DOE’s Hanford site opens vitrification plant
scim.ag
October 23, 2025 at 1:30 PM