From the why to the who, we still need a lot of answers about booster shots.
America’s tremendous number of firearms makes it much harder to reform policing.
There’s solid evidence for the crime-fighting abilities of police. But it requires a close look.
Here’s what we know about long Covid – with some hope for the future.
The coronavirus may never truly go away.
Vaccines are the solution to Covid-19. Let’s make the most of them.
The CDC says some schools can drop mask mandates – but not all of them.