KNOW IT ALL: Friday's Top 7 Stories at NBC News

Image: 2016 Scripps National Spelling Bee
Nihar Saireddy Janga, left, of Austin, Texas, and Jairam Jagadeesh Hathwar (R), of Corning, New York, hoist the trophy after being declared co-champions at the 2016 Scripps National Spelling Bee, in National Harbor, Maryland, on May 26.Michael Reynolds / EPA

Breaking News Emails

Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.
By NBC News

Good morning. Here are some of the headlines we're following this morning:

1. ‘Their Souls Speak to Us’: Obama Visits Hiroshima

Barack Obama called for a world without nuclear weapons on Friday as he became the first sitting U.S. president to visit the site of the Hiroshima atomic bombing. But he did not apologize for the U.S. actions in 1945, and instead paid tribute to "all the innocents killed across the arc of that terrible war." Read more in NEWS.

2. Passengers Flee as Airline Jet Catches Fire

An engine fire broke out on a Korean Air jet about to take off from a Tokyo on Friday, authorities said. The incident prompted authorities to temporarily close down Japan's busiest aviation hub. Read more in NEWS.

3. Super-Bad Superbug Found for First Time in U.S.

The drug-resistant mutant E. coli germ was found in a Pennsylvania woman with symptoms of a urinary tract infection, but it does not appear to be spreading at epidemic proportions. Read more in HEALTH.

4. Severe Storms, Tornadoes Tear Through Plains

Wild weather continued to pummel the middle of the United States on Thursday night, with tornadoes reported in Kansas and Texas and at least 19 people trapped by flooding in a Kentucky cave. Read more in NEWS.

5. American Girl Takes U.K. to Court in Bid to Save Dad

It's not every day that a 9-year-old American girl takes the British government to court. But for Menabe Andargachew, it's a matter of life and death: her father's. Read more in NEWS.

6. NYPD Commissioner: Rappers 'Basically Thugs'

The NYPD's top cop, Bill Bratton, is stirring controversy after calling rap artists "basically thugs" a day after a shooting at a hip hop concert in New York City left one person dead and three others injured. Read more at NBC NEW YORK.

7. Spelling Bee Crowns Co-Champs Again

The words were tougher. The final rounds lasted longer. And the result was the same. The Scripps National Spelling Bee ended in a tie for the third consecutive year Thursday night. Read more in NEWS.

Nightly Spotlight

Sugar Grove, West Virginia — a town complete with 80 homes on 122 acres — is up for auction. It's a former naval base that's so remote your cellphone won't work.