Updated at 4 p.m. ET

Roughly 600 passengers left the Diamond Princess cruise ship in Yokohama, Japan, on Wednesday, as a controversial shipwide coronavirus quarantine finally began to wind down.

All of those passengers had been tested for the COVID-19 disease by the Japanese health ministry, according to cruise operator Princess Cruises. As they left, they were met in the terminal by the cruise line's president, Jan Swartz.

Viral infections can be very hard to treat. Just ask anyone who has a bad case of the flu.

But that's not deterring research groups around the world from looking for an effective therapy against the new coronavirus, although they know it won't be easy.

Nevada Democrats, hoping to avoid a repeat of the fiasco of the Iowa caucuses, hosted an hourlong briefing with reporters Tuesday night in which they walked through a mock caucus.

Attorney General William Barr has told people close to him that he has considered resigning over his growing frustration with President Trump and the president's public statements about the Justice Department and its ongoing cases, an administration official tells NPR.

It is unclear whether the attorney general ever informed the president he was considering quitting, and for now, Barr remains at the department's helm. A spokeswoman says he has "no plans to resign."

More than a month and a half into the outbreak of a new coronavirus in China, the country's economy is still largely in lockdown mode, stalling a global manufacturing powerhouse at the heart of nearly every industrial supply chain. As the crisis continues, businesses big and small are struggling with the disruption the pneumonia-like illness has caused, with effects reaching across the globe.

Of all the chicken joints in all the towns in all the world, he walked into theirs. Two married police officers were eating at their favorite fried chicken spot in Louisville, Ky., over the weekend when a masked man walked up to the counter, showed a gun and demanded money.

In a confrontation caught on video, the couple quickly decided to end their date night and take on the robber. They then chased him out of the restaurant.