First Walt Disney Co’s Bob Iger, and now AT&T Inc’s Randall Stephenson. As two of the world’s most powerful entertainment and communications companies confront the streaming wars and the Covid-19 pandemic — bracing for what may be a new normal brought on by both — they’ll have to venture into the unknown under new leadership. Stephenson, who took a prosaic ...

The results from the first blood surveys that test for evidence of antibodies to the new coronavirus have begun rolling in. They’ve been confirming earlier hints that in hard-hit places a significant share of people — 21.2% in the New York City survey — may have been infected with the virus, and that in most other places the percentages are ...

Remember the Magic School Bus, the animated series in which a somewhat demented school teacher named Ms. Frizzle (catchphrase: “Take chances, make mistakes, get messy!”) takes her class on mind-bending adventures? In one episode, she reduces the bus to microscopic size and takes her charges into the bloodstream of an ill classmate. You see the kids swimming around in tiny ...