Police are experimenting with various methods to determine whether drivers are under the influence of marijuana, but unlike alcohol, a number of factors make that difficult to know with certainty.

The Trump administration has suggested bringing the U.S. Postal Service under White House control, and having mail carriers conduct the census. Here's what to know about the controversial ideas.

In some parts of the U.S., drug deaths have plunged to levels not seen since the fentanyl crisis exploded. Addiction experts say communities still face big challenges.

President Trump says economy is in a "period of transition" and can't predict if U.S. will fall into a recession

A man who was brandishing a firearm in Washington, D.C., was shot by Secret Service officers near the White House on Sunday morning, the Secret Service said.

NPR's Ayesha Rascoe speaks with Cleveland mayor Justin Bibb who argues that President Trump's budget cuts and funding freezes will hurt cities like his.

The time change can be hard on our health. There are more car accidents, strokes and heart attacks this week. People eat more junk food and have more migraines. Here's why — plus tips to help you adapt.

The 88-year-old pontiff is responding well to the treatment for double pneumonia and has shown a "gradual, slight improvement" in recent days, the Vatican said Saturday.

Over the past five years, Washington, D.C.'s iconic Black Lives Matter street painting has served as a powerful symbol of activism and a gathering place for joy and resistance.

House Republicans released the text of a continuing resolution that would fund the government through Sept. 30. Now, passing it in a narrowly divided chamber is the next hurdle.