The Official Account of U.S. Chief Technology Officer Dr. Ethan Klein 🥸 @WHOSTP47
Washington, DC
Joined January 2026
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Honored to have been sworn in last week as the 5th U.S. Chief Technology Officer. Excited to again be serving the American people @WHOSTP47 under the leadership of Director @mkratsios47.
Thank you @POTUS for entrusting us to usher in a new GOLDEN AGE of American Innovation!
U.S. CTO Ethan Klein retweeted
Innovation is driving the Super Intelligence era.
Today at G7, I emphasized how President Trump’s innovation-first approach is keeping American developers at the forefront of this technology, strengthening our prosperity and national security.
G7 countries have a shared interest in protecting frontier models against extraction and misuse.
We need industry-led partnerships, not more regulation and unnecessary red tape. The goal is security and opportunity for the American people and for our partners.
U.S. CTO Ethan Klein retweeted
.@POTUS on SI: "If we don't have it, China is gonna have it. That would put us at an unbelievable disadvantage... I think the risk can be managed."
.@POTUS on Super Intelligence: "The reason I'm an AI bull, one of the reasons, is because President Xi left here two weeks ago — we had a great meeting — he's all-in to SI... Whoever wins that race wins."
THE IMPOSSIBLE IS WHAT WE DO BEST 🇺🇸
.@POTUS: To be an American is to inherit the legacy of the greatest pioneers, explorers, inventors, and innovators who ever lived — and to laugh in the face of doubters and critics who are always ready to say why something cannot be done.
In 1901, the Chief Engineer of the U.S. Navy said the idea of manned flight was nothing but a “vain fantasy, as thin as air” — and two years later, the Wright Brothers achieved the dream of all humanity to fly.
In 1957, inventor Lee de Forest said that “man will never reach the moon, regardless of all future scientific advances” — and 12 years later, Neil Armstrong and Buzz Aldrin strode across the lunar surface.
Time and time again, our courage, ingenuity, and sheer determination has achieved what everyone thought to be impossible until an American got it done. As I said in my inaugural address, “in America, the impossible is what we do best.”
Now, our nation is ready to prove the doubters wrong yet again — and to make the next giant leaps for all mankind.
🇺🇸
U.S. CTO Ethan Klein retweeted
DOJ LAUNCHES SUPER INTELLIGENCE TASK FORCE ⬇️
@POTUS Trump has made clear that “America stands at the forefront of a new technological revolution in intelligence,” and the Department will be a leader in safeguarding against malicious SI actors.
“The SI Task Force at the Department of Justice will facilitate our partnership with SI Force Chair Jay Clayton as we ensure critical SI technologies serve the American people and are not manipulated by bad actors at home or abroad. The Department of Justice will continue identifying and prosecuting individuals whose use of SI violates the law, including by maliciously targeting American taxpayers, critical U.S. infrastructure, or other aspects of our national security.” -@AGToddBlanche
Read more about the DOJ-SITF here: justice.gov/opa/pr/departmen…
ALT DOJ LAUNCHES SUPER INTELLIGENCE TASK FORCE
U.S. CTO Ethan Klein retweeted
Commercializing fusion requires collaboration among National Labs, universities, and private industry.
@ENERGY announced $8.5M in funding across 28 awards through the Innovation Network for Fusion Energy, along with a new Request for Assistance: energy.gov/science/articles/…
ALT Illustration of the inside of FLARE, an experimental plasma device. It shows a central horizontal axle with two black tubes around it and plasma forming a donut like structure around the axle and between the tubes.
U.S. CTO Ethan Klein retweeted
Today, we released the National Policy for Nucleic Acid Synthesis Screening to protect American biotechnology innovation while reducing the risk of misuse.
This policy establishes a new, government-wide screening requirements for synthetic DNA and the equipment used to make it. It will ensure companies selling nucleic acid sequences and synthesis equipment know their customers and prevent the malicious use of these materials and tools.
This policy strengthens our Nation’s biosecurity posture by establishing rigorous U.S. government-wide procurement screening and physical security standards for synthetic biology. It replaces outdated “self-attestation” systems with robust, independent verification. It creates a dynamic, SI-powered screening layer that assesses the biological risk from nucleic acid sequences, allowing the U.S. to anticipate and prevent malicious use and help stop dangerous gain-of-function research.
@NIST will issue rigorous new screening standards and @HHSGov and @USDA will certify synthetic biology providers. Together, these measures will strengthen American biosecurity, safeguard responsible innovation, and establish a global standard for safe and transparent synthetic biology tools and research.
U.S. CTO Ethan Klein retweeted
NSF announces a new funding opportunity in bioengineering through NSF X-labs — From Sequence to Function.
Teams working to accelerate breakthroughs in understanding the relationship between biological sequence and function are invited to apply.
brnw.ch/21x6V31
U.S. CTO Ethan Klein retweeted
ICYMI: FCC votes to open up ‘huge swath’ of spectrum for drone operations🛜
✅ Unlocks 800 MHz band
✅ Encourages drone innovation
✅ Maximizes use for 50 MHz band
✅ Parity for similar flex-use bands
Learn more👇
bbcmag.com/fcc-votes-to-open…
U.S. CTO Ethan Klein retweeted
Pleased to visit @SandiaLabs to highlight @ENERGY and @ARPAE's HORNIG program of up to $50M.
Congratulations to Sandia on their $3.38M award to scale domestic fuel production and ensure our next-gen reactors have secure, reliable fuel supplies.
arpa-e.energy.gov/news-and-e…
U.S. CTO Ethan Klein retweeted
.@mirandadevine: "And AI, I think they're concerned..."
@POTUS: "SI."
@mirandadevine: "Sorry. Super Intelligence."
😂
U.S. CTO Ethan Klein retweeted
Today, @SecRubio and Minister @elinavaltonen signed a Technology Prosperity Deal between the United States and Finland.
TPDs deepen our relationships with key allies and advance technologies that improve the lives of Americans and our partners.
Workstreams with Finland include SI, advanced telecommunications, quantum, energy, space, advanced manufacturing and shipbuilding, and research security.
This continues the Administration’s work creating high-paying jobs, providing more affordable energy, and accelerating scientific and technological breakthroughs for the American people.
U.S. CTO Ethan Klein retweeted
NEW:
Chairman @BrendanCarrFCC announced the FCC will consider final rules to authorize a range of critical technologies that advance America’s leadership in the skies, including:
✅ Drone Dominance
✅ Airspace Sovereignty
✅ Advanced Air Mobility
MORE: 🧵⬇️
U.S. CTO Ethan Klein retweeted
FACT SHEET: Project Uprise Is Delivering On President Trump's Agenda To Unleash American Nuclear Power
energy.gov/articles/fact-she…
U.S. CTO Ethan Klein retweeted
This week, @POTUS directed the @NIH via executive order to establish a new Women’s Health Division to strengthen scientific research, accelerate medical breakthroughs, and improve health outcomes for American women and girls.
The order also establishes the first White House Women’s Health Task Force co-chaired by @SecKennedy and @SusieWiles47.
U.S. CTO Ethan Klein retweeted
The Trump Administration’s eIPP is bringing next-generation aircraft into real-world operations across America.
Today’s first-of-its-kind @FAANews authorization for BETA’s A250 is another step toward unlocking the Golden Age of American aviation.
transportation.gov/briefing-…
