Scott examines evidence for racial bias in the US criminal justice system, finding some bias in certain areas but not others, and concluding that claims of pervasive racism are overstated. Longer summary

This post analyzes racial bias in the US criminal justice system, reviewing studies on various aspects like police stops, arrests, prosecutions, and sentencing. Scott finds evidence of racial bias in some areas (e.g. capital punishment, sentence length) but little or no bias in others (e.g. arrests for violent crimes, prosecutions). He concludes that while there is some racial bias, claims of pervasive systemic racism are overstated. However, he notes that even without explicit bias, the system can still disproportionately harm black people through indirect means like drug laws or poverty-related factors. Shorter summary

Scott Alexander examines evidence on marijuana legalization's effects on usage, health, and drug war costs, finding uncertainties too large for firm conclusions but suggesting traffic accidents may be the key factor. Longer summary

Scott Alexander examines the evidence around marijuana legalization, looking at its effects on usage rates, health impacts, and costs of the drug war. He finds that decriminalization and medical marijuana don't seem to increase youth usage much, but full legalization might increase adult use by 25-50%. Health effects are unclear but may include IQ declines and slightly increased psychosis risk. The costs of the drug war are significant in terms of arrests and spending, but relatively few people are in prison solely for marijuana. Scott attempts a utilitarian analysis comparing costs and benefits of legalization, but finds the uncertainties too large to draw firm conclusions. He suggests the most important factor may be how legalization affects traffic accidents. Shorter summary