Jiajun Han

I have a little script ccr that I use to create an environment that is isolated so that my buddy can't destroy my machine.

If you're completely new to this stuff, I put together a complete beginners guide README as well: github.com/paulgp/claud...

Black folk been knowing

New @nber.org paper with @caitlinpatler.bsky.social &
@elizabethacox.bsky.social out!

We examine how ICE arrests differ in Trump 2.0 vs. 1.0

Key Findings 🧵

1) MANY more arrests in Trump 2.0 than 1.0

2) When arrests spike, % arrested w criminal conviction falls

www.nber.org/papers/w3479...

British Politicians Still Have Shame The Epstein case keeps threatening politicians—just not in the United States.

The Epstein case continues to threaten prominent figures around the globe—yet the latest files could topple British Prime Minister Keir Starmer in a way they've not affected American politicians, Idrees Kalhoon argues:

🚨📰New WP 🚨📰
How does social housing design affect neighborhoods decades later? We study London gangs to show that postwar urban planning—specifically high-rise public housing construction—had lasting effects on gang formation
@cep-lse.bsky.social

New report out by yours truly @clasp.org !!

ICE Activity in Trump 2.0 is Increasing Employment and Decreasing Full-Time School Enrollment for Teens in Mixed-Status Families

www.clasp.org/publications...

Britain’s worst political scandal of this century The Mandelson affair threatens Sir Keir Starmer’s premiership

Whole column here if you like reading column www.economist.com/britain/2026...

I've been working on this one for a while. It's about how we got here, and where we're going. I hope you'll read it to the end. Gift link: www.theatlantic.com/politics/202...

The ICE killings in Minneapolis evoke Selma but the day-to-day tactics in Minneapolis remind me of the Birmingham Bus Boycott: a grinding, continuous, citywide and logistically demanding effort of non-cooperation over months to break an unjust status quo.

The changing spatial pattern of metropolitan racial segregation, 1900–2020: the rise of macro-segregation Abstract. This paper tracks 120 years of Black-white segregation in US metropolitan areas. We draw on comprehensive Census data at consistent small-scale g

Interesting paper on trends on racial segregation in US academic.oup.com/sf/article/1...

Bad Bunny’s All-American Grammys The singer was among a raft of stars who spoke out on behalf of immigrants and against ICE at this year’s ceremony.

At the Grammys, Bad Bunny asserted an obvious truth that somehow has become controversial: People like him are American, @skornhaber.bsky.social writes:

If Orban loses the election in Hungary on April 12th to Peter Magyar it’s going to be massive for Europe and the entire democratic world. Orban largely created the populist-right formula for autocratic takeover of a democracy which was copied by MAGA’s Project 2025. 1/12

The Melania Trump Documentary Is a Disgrace The exorbitant film captures the rotten state of the entertainment industry.

“Melania the movie isn’t a documentary; it’s a protection racket. It’s a reminder that the richest people in the world are investing in entertainment brands… because all of these vanity projects and capitulations are a way to consolidate their own power and fortune.”

As a dedicated reader of The Atlantic, I truly appreciate your writing!

MAGA’s War on Empathy This crisis in Minneapolis reveals a deep moral rot at the heart of Trump’s movement.

I believe that Christians like me—and people of faith more generally—have a responsibility to stand up to the extremists who use religion to divide our society and undermine our democracy.

My new piece in the Atlantic:

www.theatlantic.com/ideas/2026/0...

Opinion | The Polls Are Clear. Americans Don’t Want This.

“In October…only 34% said ICE made them feel less safe. Since then, many of those in the middle have come off the sidelines. My most recent survey, which was initiated after the shooting of Renee Good, showed a jump to 45% of voters saying they now feel less safe as a result of ICE’s raids.” Gift 🔗

On British state slowly becoming Martin Lewis with nukes

The cost of the cost-of-living obsession
economist.com/britain/2026...
from The Economist

New paper in Economics & Politics: temporary labor migration (H2A/H2B), instrumented with a Bartik design, does not raise GOP vote share - it tends to lower it (especially H2B). Far-right polarization falls; far-left rises. #EconSky onlinelibrary.wiley.com/doi/epdf/10....

How Congress can rein in ICE—and start to redeem itself Senator Susan Collins of Maine has a historic chance to lead

Susan Collins has a rare opportunity at a moment of extraordinary tension in American life—a chance to ease the tension, affirm Congress’s role as a check on the executive branch and defend Americans’ civil liberties. Will she seize it?

www.theatlantic.com/ideas/2026/0...

GitHub - reifjulian/strgroup: Match strings based on their Levenshtein edit distance. Match strings based on their Levenshtein edit distance. - reifjulian/strgroup

I've released a new version of strgroup, a Stata command that does fuzzy string matching. No new functionality, but the underlying C code has been optimized: it now uses much less memory and runs about 5 times faster
github.com/reifjulian/s...

How to help the resistance to ICE in Minnesota — and beyond What Minnesota’s immigrant communities need from you now.

In Minneapolis and many other communities across the country, we're seeing people come together to peacefully protest and support their neighbors. If you're looking to get involved, here are some ways to help:

Yesterday I had to talk to campus police about whether I should have cops for a campus talk I'm giving about ICE

Then my international students asked me if they are safe to attend the talk if ICE targets it

I feel like I'm losing my mind

Every social theory undergirding Trumpism has been broken on the steel of Minnesotan resolve. The multiracial community in Minneapolis was supposed to shatter. It did not. It held until Bovino was forced out of the Twin Cities with his long coat between his legs. The secret fear of the morally depraved is that virtue is actually common, and that they’re the ones who are alone. In Minnesota, all of the ideological cornerstones of MAGA have been proved false at once. Minnesotans, not the armed thugs of ICE and the Border Patrol, are brave. Minnesotans have shown that their community is socially cohesive—because of its diversity and not in spite of it. Minnesotans have found and loved one another in a world atomized by social media, where empty men have tried to fill their lonely soul with lies about their own inherent superiority. Minnesotans have preserved everything worthwhile about “Western civilization,” while armed brutes try to tear it down by force.

Last week in Minnesota, I watched ordinary people risk their lives to protect their neighbors. In the process, they not only won a significant—though not final—victory against authoritarianism, they proved virtually every MAGA social theory wrong. (gift link) www.theatlantic.com/ideas/2026/0...

My heart is broken after last weekend. My energy to help protect my community is renewed.

Let's stop pretending like everything is ok and start/keep organizing to push back.

If you need guidance on how to organize, DM me.

TincherSealedWitnessDec012426.PDF

This witness to Alex Pretti's murder not only refutes the governmen't story, but says she is afraid to go home because federal agents might arrest her. This is what it feels like to live under state terror.
www.documentcloud.org/documents/26...

A teacher literally shaking as she describes the threat from her own government to the children she teaches www.theatlantic.com/politics/202...

This is one of the things that I find is most shocking to people outside Minnesota who don’t realize it yet—the scale at which everyone who isn’t white has been forced into a spectrum of hiding.

Very good article drawing out the Tahrir Square comparison.

A pitbull with a big head stand in the foreground behind them is three containers of bright, orange, poppies and a container with sunflowers in it. Behind that is a street in crosswalk with cars in it.

A screenshot of an Instagram story that includes a photo of three masked men and green military gear arresting a person who is on the ground. Below that is a photo of a black explorer and it’s license echoparklatu 22m See translation > 9:05am - One person kidnapped from Sunset & Echo Park. STAY SAFE OR COME OUT! 9:05 a. m. - Una persona secuestrada en Sunset y Echo Park Ave. MANTÉNGANSE SEGUROS O SALGAN SI PUEDEN! 306682

ICE took the flower man in Echo Park 40 minutes ago. He’s at this corner every day. I’ve bought flowers from the man and woman here for anniversaries and birthdays. Lemmy loves to smell them whenever we walk by in the mornings. I was just at the street corner 15 minutes before it happened. Fuck.