5 things for March 28: North Korea & China, Sacramento, water park death, new organ

Kim Jong Un makes surprise visit to China
Kim Jong Un makes surprise visit to China

    JUST WATCHED

    Kim Jong Un makes surprise visit to China

MUST WATCH

Kim Jong Un makes surprise visit to China 00:56

(CNN)Meet the "clown" running for Congress in South Carolina. No, really. Here's what else you need to know to Get Up to Speed and Out the Door. (You can also get "5 Things You Need to Know Today" delivered to your inbox daily. Sign up here.)

1. North Korea and China

Kim Jong Un really did make that rumored trip to China. And the North Korean leader reportedly talked about getting rid of his country's nukes with Chinese President Xi Jinping. Chinese state media reported Kim said he's committed to denuclearization -- with conditions; North Korean state media reported Xi accepted an invitation to visit Kim in Pyongyang. Experts think Kim made the trip to Beijing because he'll need support from North Korea's closest ally before possible meetings with the Presidents of South Korea and the US.
    Mystery train: is North Korea's Kim aboard?
    exp Todd.North.Korea.kim.jong.un.mystery.train.china_00000701

      JUST WATCHED

      Mystery train: is North Korea's Kim aboard?

    MUST WATCH

    Mystery train: is North Korea's Kim aboard? 02:40

    2. Sacramento protests

    Outrage and anger still burn hot in Sacramento, more than a week after police killed Stephon Clark, an unarmed black father. Protesters yesterday pretty much took over a city council meeting. Clark's brother marched to the front of the chamber, jumped on the dais in front of the mayor and chanted Clark's name. Later, one man urged people to stand, point their cell phones at council members and ask, "Does this look like a gun?" -- a reference to the phone investigators found near Clark's body after police said he had a firearm. Protesters also again blocked entrances at the NBA home of the Sacramento Kings. The incident is a big test for the city's first African-American police chief.
    Shooting victim's brother interrupts meeting
    Shooting victim's brother interrupts meeting

      JUST WATCHED

      Shooting victim's brother interrupts meeting

    MUST WATCH

    Shooting victim's brother interrupts meeting 01:09

    3. Russia mall fire

    It's a tragedy almost too horrible to fathom: Dozens of schoolchildren, killed in a fire. Some trapped children sent social media messages to their families; one fifth grader wrote, "We're burning. It's probably goodbye." In all, 64 people -- 41 of them children -- perished Sunday in the blaze at a shopping mall in Siberia. Hundreds of people protested yesterday, calling for an investigation. Russian President Vladimir Putin flew to the city to offer his condolences. It's believed the fire started in the mall's movie theater, which was full of families on spring break. Investigators say fire exits were blocked and the alarm system was off.
    Deadly fire engulfs shopping mall in Russia
    Deadly fire engulfs shopping mall in Russia

      JUST WATCHED

      Deadly fire engulfs shopping mall in Russia

    MUST WATCH

    Deadly fire engulfs shopping mall in Russia 01:10

    4. Kansas water park death

    Two designers of a waterslide in Kansas face second-degree murder charges in the 2016 decapitation death of a 10-year-old boy at the Schlitterbahn water park. The park itself and its ex-operations director were charged last week with involuntary manslaughter. One of the designers also co-owns the park, which in a statement said the accused "are innocent." The construction company that designed and built the ride was also charged with murder. Caleb Schwab was killed while riding the Verruckt, billed as the world's tallest waterslide.
    10-year-old boy dies on 17-story waterslide
    kansas water park death lah dnt lead _00013119

      JUST WATCHED

      10-year-old boy dies on 17-story waterslide

    MUST WATCH

    10-year-old boy dies on 17-story waterslide 03:02

    5. Interstitium study

    Know much about the interstitium? We don't either. Apparently, it's the fluid-filled spaces within and between tissues all over your body. And some researchers consider it to be an organ, perhaps the body's biggest. Say what? Doctors and scientists have known about interstitial tissue and interstitial fluid, but a new study in the journal Scientific Reports raises the possibility that it could be an organ (though not everybody's convinced). The study also suggests the interstitium may play a role in the spread of cancer cells.

    BREAKFAST BROWSE

    A little DC Sunshine
    Things may actually get a little brighter at 1600 Pennsylvania Avenue, now that ex-Disney star Caroline Sunshine is joining the White House press shop.
    Former Disney star joins the White House
    Former Disney star joins the White House

      JUST WATCHED

      Former Disney star joins the White House

    MUST WATCH

    Former Disney star joins the White House 00:48
    At face value
    Playboy's leaving Facebook over the data-sharing scandal. You know it's bad when a "gentlemen's" mag says your values contradict theirs.
    Deal of a couple of lifetimes
    A big blue diamond, passed through European royalty for hundreds of years, goes on sale for the first time in Switzerland.
    Nope burger
    Carl's Jr. wanted to put out a "SpielBurger" to honor Steven Spielberg. They assumed he'd be "cool with it." They were all kinds of wrong.
    How Steven Spielberg stays inspired
    How Steven Spielberg stays inspired

      JUST WATCHED

      How Steven Spielberg stays inspired

    MUST WATCH

    How Steven Spielberg stays inspired 03:40

    TODAY'S NUMBER

    $80 billion
    That's how much Facebook has lost in market value since the data-sharing scandal broke almost two weeks ago.
    Is there a safe way to use Facebook?
    facebook data woman

      JUST WATCHED

      Is there a safe way to use Facebook?

    MUST WATCH

    Is there a safe way to use Facebook? 05:56

    TODAY'S QUOTE

    "I've put my life in danger."
    Olympic legend Michael Phelps, calling for the US Olympic Committee to do more to help athletes struggling with depression. Phelps, the most decorated Olympian of all time, says his successes at each Olympic Games were followed by drug and alcohol use.
    Michael Phelps shares battle with depression
    Michael Phelps shares battle with depression

      JUST WATCHED

      Michael Phelps shares battle with depression

    MUST WATCH

    Michael Phelps shares battle with depression 00:40

    AND FINALLY

    Back and forth
    Who's up for trick shots? Logan Broadbent, a world champion boomerang thrower (yes, that's really a thing), and friends wow us with their skills. (Click to view.)