President Biden formally blocked the sale of U.S. Steel to a Japanese steelmaker, citing national security concerns. The company said that it may have to cut thousands of union jobs without the sale.
South Korea's political crisis began a month ago with the brief declaration of martial law. It's a recent example of power grabs in established democracies that holds lessons for other nations.
New research shows that the anesthetic ketamine keeps fish from giving up -- and the way it works may help figure out how it works in humans and lead to better medications for depression.