Secretary of State Antony Blinken arrived in Kabul this morning in an unannounced visit intended to demonstrate the U.S. commitment to Afghanistan. President Biden announced Wednesday his decision to withdraw all troops from the country.

For the first time, U.S. and Chinese scientists have created embryos that are part human, part monkey, in an effort to find new ways to produce organs for transplants. But some ethicists worry about how such research could go wrong.

Brazil's COVID-19 health crisis is being described as a "humanitarian catastrophe" by the international medical aid agency Doctors Without Borders. The country's average daily death toll has risen above 3,000, the highest in the world.

With wifi and GPS and satellite radio and digital TV, every tiny bit of the radio spectrum has grown crowded. That's interfering with scientists' ability to peer into space -- or even to peer back down at Earth. @WHYYThePulse 

THREAD: An NPR investigation reveals new details about how hackers staged the SolarWinds attack. Their techniques were so novel they eluded the NSA and the DHS’s cybersecurity branch. “This was the craziest f***ing thing I’d ever seen,” one expert said.

Simon & Schuster has scrapped its plans to distribute a book written by one of the Louisville police officers who fired shots into Breonna Taylor's apartment. Post Hill Press says it's moving forward with plans to publish it.

NEW: Police have identified the eight victims who were killed in the shooting at a FedEx facility in Indianapolis. They ranged in age from 19 to 74 years old.

Denver Parks and Recreation are sending fourteen American bison to three indigenous tribes as a form of reparations, the first gift in a 10-year ordinance to donate surplus bison that will also go toward tribal conservation efforts.

Hope Trautwein, a pitcher for the University of North Texas, made history on Sunday by striking out every single one of the 21 batters she faced through all seven innings. "I guess it's never been done before, so it doesn't have a name," she tells NPR.

Russian opposition leader Alexei Navalni, who is three weeks into a hunger strike, could die of cardiac arrest or kidney failure "at any moment," his physician says.