Iran's Foreign Minister Mohammad Javad Zarif tells NPR that renegotiating the 2015 nuclear deal between his country and six world powers would be opening a 'Pandora's Box' that risks damaging U.S. credibility in future international talks.

Facebook announced changes to its content review policy Tuesday, adding an appeals process for removed content and releasing the internal guidelines it relies on to make content determinations.

While the social media giant has listed a set of publicly available community standards for several years, the latest update includes the more detailed guidelines utilized internally by content reviewers when deciding whether to allow or remove posts.

In a rare joint statement, the U.S and U.K. last week warned that Russia is actively preparing for a future cyberwar against the West.

Fifteen months into the Trump presidency, the first state dinner, in honor of French President Emmanuel Macron, will be a big moment for first lady Melania Trump, who has kept a lower profile than many of her predecessors.

"It's much more than just a dinner," said Kate Andersen Brower, author of First Women: The Grace and Power of America's Modern First Ladies and a forthcoming book about vice presidents.

You might see smoke rising or trails blocked off in parts of the White Mountain National Forest over the next six weeks.

The U.S. Forest Service will be setting as many as 20 fires across the park in an effort to keep the forest healthy. Fire management officer Patrick Johnson says the fires' locations depend on what the forest needs every year. 

Former President George H.W. Bush, whose wife, Barbara, died just last week, has been admitted to a Houston hospital for an infection that has spread to his blood.

"He is responding to treatments and appears to be recovering," Bush family spokesman Jim McGrath said in a statement. "We will issue additional updates as events warrant."