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Very proud to be a part of the Vital City team that took the deepest dive yet into the problems of crime and disorder in the NYC subways, found that unpredictable assaults by strangers were at the heart of the problem, and devised a plan to reduce them. nytimes.com/2025/03/14/nyr…

I was down there on 9/11 and in the weeks after. The toxins police and firefighters were exposed to are still claiming lives. For the longest time, the government had our back, and said it always would. Not any longer; we're apparently waste and abuse to be cut with a chainsaw.

Drawing conclusions about police abolition by literally saying your study does not provide the data to support it, but the participants may have lacked vision and the authors' expertise justifies the conclusion, is a reason why many people don't take criminology seriously, sadly.

Standing with Greenland means respecting its autonomy, and through that respect, forging a strong alliance that protects the free world. It doesn't mean menacing Greenland like a bully so "can't wait to come back again soon" comes off as a threat.

People report police seizing their opioid supplies paradoxically increases overdose risk, and quantitative studies bear this out. We're excited to present the Police Opioid Seizure Temporal Risk (POSTeR) model, which demonstrates how, and why. Free here: authors.elsevier.com/a/1kr6I_LkIBUH…

Thrilled and honored to be briefing members of Congress and their staff on addiction and Medicaid policy today at the Rayburn House Office Building.

There is no reason why a child in the United States of America in 2025 should die of measles.

A world class scientific lab in cities like New York, Boston, and Providence, with intense competition for real estate, human capital, and resources, is expensive. It requires overhead well above 15% of the research itself. This is a victory for Americans. nytimes.com/2025/04/04/us/…

Never has a tweet from a US vice president been more fitting for April Fool's Day.

“The Police Opioid Seizure Temporal Risk (POSTeR) model of increased exposure to fatal overdose” by Brandon del Pozo and colleagues (2025) via International Journal of Drug Policy…do police know that opioid seizures can cause more overdoses? Link: sciencedirect.com/science/articl… #DrugPolicy

Tuberculosis infects a quarter of the world's population and kills a million people a year. To flex on Harvard, the president gutted its tuberculosis research yesterday. The trials have stopped, they will have to kill the study's animals, people will die. bostonglobe.com/2025/04/15/met…

New! Vital City Issue #12 out now featuring David Schleicher Alex Piquero Grace Rauh Kevin Schnepel Brandon del Pozo Julie Sandorf and other great writers. vitalcitynyc.org/issues/what-ma…

For my Christian brothers and sisters out there, Happy Easter from the Church of the Holy Sepulchure, Jerusalem, 2025. The devotion of the pilgrims is humbling.

The Law faculty at Hebrew University, founded in 1925 by Albert Einstein, invited me to Jerusalem to deliver a class on my drug policy research. The city is amazing, the students are great (they read, and ask questions!), and the university is world class. Pleased and honored to be here.

Friday, May 9th, Biden's first drug czar and I will be in conversation at a free event in Cold Spring, NY. Please spread the word, and attend if you're in the area. Few people know more about the past, present and possible future of the nation's drug crisis than Regina Labelle.

I'll be presenting in the NYC at a Crossroads Convening on May 13th and 14th, alongside our city’s top researchers, journalists, public servants, and the public as we chart a path forward where all New Yorkers feel safe. Register here: eventbrite.com/e/nyc-at-the-c…

Fascinating, because a couple years ago I wasted way too much time trying, with others, to point out obvious flaws in data in a policy-relevant article by the same author. (Not Rickne, the one Rickne is talking about.) What are the odds? x.com/PeterMoskos/st…

Another paper by the same author in The Economic Journal had an invalid research design that prevented drawing its conclusions. The journal and author were defensive and dismissive. It was a garbage study that should be retracted, now part of a pattern. Read more here: tandfonline.com/doi/abs/10.108…

It was great to see my son's high school principal at an event on addiction and overdose. I was proud to host a talk last night with Regina LaBelle, Biden's first drug czar and former chief of staff of the ONDCP.