Reefer Madness is alive and well at the Wall Street Journal. An op-ed claims cannabis made the Dallas ICE shooter “psychotic.” Let’s dismantle this fear-mongering, step by step. First, who is Allysia Finley? She’s on the WSJ’s conservative editorial board. For years, she’s pumped out anti-cannabis hit pieces. She opposed legalization in CO and WA, calling rescheduling a “risky experiment.” No science. This is just her opinion rooted in her ideology. Here’s the problem, correlation ≠ causation. Millions use cannabis without violence. Some people with mental illness also use cannabis. Linking the two because of a tragic outlier isn’t science at all. It’s purely propaganda. Yes, some studies (e.g. Lancet Psychiatry) show a link between heavy/high-potency cannabis use and psychosis risk. But those are associations. Genetics, trauma, and the simultaneous use of other drugs muddy the picture. Finley ignores that complexity. Reverse causation matters too. People with emerging psychosis often self-medicate with cannabis because it’s a helpful medicine. Psychological Medicine (2024) shows prior psychotic symptoms often predict later cannabis use. Not the other way around. Finley never mentions this because it doesn’t fit her narrative. What about violence? Even in people with psychosis, reviews in journals like Frontiers in Psychiatry show cannabis only shows up as a factor when other things are going on in their life like trauma, poor impulse control, and skipping treatment. Cannabis itself does not cause violence. Meanwhile, alcohol is linked to far more violence and psychosis but it’s completely legal and socially accepted so nobody calls that a crisis. Yes, cannabis has risks (mostly for youth and heavy use), but exaggerated “madness” claims ignore real benefits like pain relief, nausea control, better sleep, and reduced seizures and tremors. Finley’s opinion piece isn’t science based in any way. It’s Reefer Madness 2.0. Fear dressed up as fact. If we care about public health, let’s debate cannabis honestly, based on evidence, not ideology.