From The Atlantic, Alana Semuels on the end of welfare as we know it: America’s once-robust safety net is no more. The failure of welfare reform: Jordan Weissmann on how Bill Clinton’s signature legislative achievement tore America’s safety net. Twenty years since welfare “reform”: America’s poorest are still dealing with the consequences of the legislation that Bill Clinton signed into law two decades ago today. Max Ehrenfreund on how welfare reform changed American poverty, in 9 charts. Annie Lowrey on the anti-poverty experiment that could fix America’s broken welfare system. The near impossibility of moving up after welfare: In the wake of welfare reform, unemployed people are pushed to quickly find work, any work — but too often those jobs lead nowhere. Paul Ryan is pretty sure welfare recipients are not working hard enough.

The return of American hunger: An uneven recovery and new food-stamp restrictions have left millions more people short on food. Who gets food stamps? White people, mostly. How do Americans view poverty? Many blue-collar whites, key to Trump, criticize poor people as lazy and content to stay on welfare. Welfare utopia: Oregon, one of the whitest states in the union, also has one of the most generous safety nets — is that a coincidence or something more troubling? Alma Carten on how racism has shaped welfare policy in America since 1935.

Michael C. Blumm and Olivier Jamin (Lewis and Clark): The Property Clause and its Discontents: Lessons from the Malheur Refuge Occupation. John Komlos (Munich): Another Road to Serfdom. Ishaan Tharoor on the enduring success of Latin American politicians of Arab origin. As homeless find refuge in forests, “anger is palpable” in nearby towns. Jim Tankersley on how sexism holds back the economy. The Affordable Care Act is not in crisis — but it could be better. Scientists discover a boiling river of Amazonian legend. Fred Baumann on sex and philosophy in the 21st century: Progressives try to fix relations between the sexes by taking the theory of equality to unworkable extremes. Jia Tolentino on what happens when we decide everyone else is a narcissist. John Seabrook on how we live in the pop-culture world that Lou Pearlman created.

Anne I. Harrington (Cardiff): Power, Violence, and Nuclear Weapons. Andreas Umland (IEAC): The Ukraine Example: Nuclear Disarmament Doesn’t Pay. During the cold war, America wanted to hide nukes in Iceland. A look at how a solar flare almost triggered a nuclear war in 1967. Robert Gallucci on a complex nuclear situation, in a complicated world. Is the world creeping towards a ban on nuclear weapons? The deadly briefcase that never leaves the president’s side: Donald Trump’s views on nukes may be the scariest thing about his candidacy — but how does Potus launch an attack at a moment’s notice? Our nuclear procedures are crazier than Trump: U.S. presidents are currently given a four-minute window to decide whether or not to initiate an irreversible apocalypse. Obama’s last chance to terminate US nuclear policy (thanks to Trump): Joe Cirincione on four ways Obama can make humanity safer from nuclear weapons before anyone else gets the launch codes.

Debate over Trump’s fitness raises issue of checks on nuclear power. Would you trust Trump to handle nukes? Republican senators won’t say. Hillary Clinton should go nuclear on Donald Trump.

Cass Sunstein (Harvard): On Mandatory Labeling, With Special Reference to Genetically Modified Foods. Dennis Whitcomb and Daniel Howard-Snyder (Western Washington), Heather Battaly (CSU-Fullerton), and Jason Baehr (LMU): Intellectual Humility: Owning Our Limitations. Heidi M Hurd (Illinois): The Normative Force of Consent. Evidence points to another Snowden at the NSA (and more). Maria Bustillos on A.J. Daulerio, bloodied but unbowed. The first chapter from Brazil in Transition: Beliefs, Leadership, and Institutional Change by Lee J. Alston, Marcus Andre Melo, Bernardo Mueller and Carlos Pereira. A bid by Los Angeles to host the 2024 Olympic Games could fall victim to anti-American sentiment brewing inside the International Olympic Committee. In death of D.A. Henderson, credited with eradicating smallpox, the world loses an intellectual giant.

Here’s what happened the day the dinosaurs died: An impact calculator helps scientists paint a vivid picture of the immediate aftermath of the deadly asteroid strike. What would happen if we lost one-sixth of Earth’s species? We may just find out. Most species that disappear today will leave no trace in the fossil record. Snails are going extinct: Here’s why that matters. Joanna Klein on frogs that escaped extinction. How good are we at saving animals from extinction? Matthew Schneider-Mayerson reviews Extinction: A Radical History by Ashley Dawson (and an excerpt). Is intentional extinction ever the right thing? Edward O. Wilson on the global solution to extinction. Welcome to CRISPR’s gene-modified zoo: Birds and bees are just the beginning for this animal-altering technology. Hillary Rosner on tweaking genes to save species. Jurassic pigeon: Bringing extinct animals back to life is now within our grasp. The Jurassic Park science to bring back dinosaurs is almost here.