University presidents backed into a corner

How bird flu virus fragments get into milk sold in stores, and what the spread of H5N1 in cows means for the dairy industry and milk drinkers

Noelia Silva del Rio, University of California, Davis; Richard V. Pereira, University of California, Davis; Robert B. Moeller, University of California, Davis; Terry W. Lehenbauer, University of California, Davis; Todd Cornish, University of California, Davis

Five livestock experts who study infectious diseases in the dairy industry explain the risks.

Teacher lawsuits over forced grade inflation won’t fix unfair grading – here’s what could

Laura Link, University of North Dakota

Not all teachers comply when asked to adjust student grades. An education scholar takes a look at what happens when they don’t.

What is ‘techno-optimism’? 2 technology scholars explain the ideology that says technology is the answer to every problem

Seyram Avle, UMass Amherst; Jean Hardy, Michigan State University

Venture capitalist Marc Andreessen is one of this concept’s biggest enthusiasts.

A coral-bleaching event is devastating reefs globally − threatening tiny creatures whose beauty and biology have shaped human cultures for centuries

The US is one of the least trade-oriented countries in the world – despite laying the groundwork for today’s globalized system

Philadelphia has a lot more deadly shootings than expected for a big city − and NYC is much safer, new study says

When the Supreme Court said it’s important to move quickly in key presidential cases like Trump’s immunity claim

Trump trial reveals details about how the former president thinks about, and exploits, the media

The Mars Sample Return mission has a shaky future, and NASA is calling on private companies for backup

Under the influence and under arrest − what happens if you’re drunk in the interrogation room?

Nearsightedness is at epidemic levels – and the problem begins in childhood

Gender-nonconforming ancient Romans found refuge in community dedicated to goddess Cybele

What cities can learn from Seattle’s racial and social justice law

Do implicit bias trainings on race improve health care? Not yet – but incorporating the latest science can help hospitals treat all patients equitably

The Conversation U.S. weekly news quiz

Joel Abrams, The Conversation

Here’s the first question of this week’s edition:

If everyone on Earth got in the ocean and submerged themselves underwater at the same time, about how much would the world's sea level rise?

1. A. The width of a human hair
2. B. The diameter of a baseball
3. C. The height of Herbert Hoover
4. D. The height of the Empire State Building

Test your knowledge