5 things for April 20: Comey memos, North Korea, Arizona teachers, YouTube, Berlin

Hear part of Comey's memo on Trump, Flynn
Hear part of Comey's memo on Trump, Flynn

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    Hear part of Comey's memo on Trump, Flynn

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Hear part of Comey's memo on Trump, Flynn 01:20

(CNN)Students at 2,500 schools will walk out today to protest gun violence. Meet the teen behind the event. 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. The Comey memos

We got a look at 15 pages of just-released memos that James Comey wrote documenting his conversations with President Trump in the early days of the administration. There's no bombshell, but the records -- released to Congress, then leaked -- make for some interesting reading. The ex-FBI director wrote about Trump's "serious reservations" about then-national security adviser Michael Flynn, his concerns about leaks and his recollection of Russian President Vladimir Putin telling him Russia had the "most beautiful hookers in the world." Um, OK.
    Reporter: Trump's hooker remark raises eyebrows
    Reporter: Trump's hooker remark raises eyebrows

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      Reporter: Trump's hooker remark raises eyebrows

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    Reporter: Trump's hooker remark raises eyebrows 01:30
    House Republicans pressured the Justice Department to release the memos because they wanted to show Comey is not credible. But CNN's Stephen Collinson says the GOP didn't do the President any favors. He called the memos stunning said they present a "deeply unflattering view of a President throwing his weight around in his first days in the White House -- that at the very least seems highly inappropriate." Trump tweeted about the memos, saying they showed there was "NO COLLUSION and NO OBSTRUCTION."
    Meantime, ex-NYC Mayor Rudy Giuliani is joining Trump's personal legal team. He'll deal with special counsel Robert Mueller, hoping to give "a little push" to close the Russia probe. Giuliani and Mueller have known each other for years.
    Rudy Giuliani joins Trump's legal team
    Rudy Giuliani joins Trump's legal team

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      Rudy Giuliani joins Trump's legal team

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    Rudy Giuliani joins Trump's legal team 01:16

    2. North Korea

    A big stumbling block to getting nukes off the Korean Peninsula has been North Korea's insistence that the US pull its 28,000 troops out of South Korea. Now, it seems that hurdle is gone. South Korean President Moon Jae-in says the North is dropping that demand as a precondition for talks on denuclearization. Moon and North Korean leader Kim Jong Un meet next week for a historic summit, with Kim and President Trump planning to meet sometime in May or June.
    Truce Village: Where two Koreas face off
    Truce Village: Where two Koreas face off

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      Truce Village: Where two Koreas face off

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    Truce Village: Where two Koreas face off 01:09

    3. Arizona teacher walkout

    Teachers in the Grand Canyon State will walk off the job next week, after 78% of school employees in the Arizona Education Association voted to strike. It's part of a wave of teacher actions in states including West Virginia, Oklahoma, Kentucky and Colorado. The Arizona walkout -- reportedly a first in that state -- starts next Thursday, so parents get time to prepare. The state's governor offered teachers a 20% pay raise by 2020, but they rejected it because it didn't address other education funding issues.
    Father quits job after 15 years
    Father quits job after 15 years

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      Father quits job after 15 years

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    Father quits job after 15 years 02:07

    4. YouTube

    Ads from more than 300 companies and organizations -- including tech giants, major retailers, newspapers and government agencies -- ran on YouTube channels that promote white nationalists, Nazis, pedophilia, conspiracy theories and North Korean propaganda, a CNN investigation has found. Many of the companies said they didn't know their ads were on these channels and are trying to figure out how they got there.
    This raises a couple of questions: Can YouTube safeguard ads and brands' integrity? And does relying on an automated system mean advertisers will always be at risk for such ad placements? YouTube says it will make "significant changes."
    Meet the CEOs who decide what you see online
    Meet the CEOs who decide what you see online

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      Meet the CEOs who decide what you see online

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    Meet the CEOs who decide what you see online 11:06

    5. Berlin

    If you're in central Berlin this morning, you might have some trouble getting around. That's because authorities will attempt to dispose of an unexploded World War II-era bomb found during construction work near the city's central train station. Buildings will be evacuated, and bus and train routes will be affected as police work to defuse the 1,100-pound bomb. The discovery of bombs from World War II is not uncommon in Germany.
    Massive WWII bomb successfully deactivated in 2017
    Massive WWII bomb successfully deactivated in 2017

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      Massive WWII bomb successfully deactivated in 2017

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    Massive WWII bomb successfully deactivated in 2017 00:48

    TODAY'S NUMBER

    $5,000
    The value of checks Southwest Airlines has given to at least some passengers who were on Flight 1380, which had to make an emergency landing this week after a deadly engine failure incident
    Southwest hero: I felt a calling to help
    Southwest hero: I felt a calling to help

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      Southwest hero: I felt a calling to help

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    Southwest hero: I felt a calling to help 01:29

    TODAY'S QUOTE

    "The phases of healing don't always feel like healing."
    Columbine High School teacher Paula Reed, answering a Marjory Stoneman Douglas High School student's question about when things will get better for the survivors of the Parkland, Florida school shooting. Sixty Parkland students traveled to Colorado and met with Columbine survivors. Today is the 19th anniversary of that massacre.
    Columbine, Parkland students unite for walkout
    Columbine, Parkland students unite for walkout

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      Columbine, Parkland students unite for walkout

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    Columbine, Parkland students unite for walkout 02:16

    BREAKFAST BROWSE

    Baby on board
    Illinois Sen. Tammy Duckworth made history by casting a vote on the Senate floor with her newborn baby at her side.
    Sen. Duckworth brings baby to vote in Senate
    Sen. Duckworth brings baby to vote in Senate

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      Sen. Duckworth brings baby to vote in Senate

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    Sen. Duckworth brings baby to vote in Senate 01:39
    Marketing magic
    What's the best place to launch a new product? How about the witness stand. That's where AT&T's CEO talked about a new streaming service.
    Let the sunshine in
    Blackouts are a part of everyday life in some parts of Puerto Rico, but not for one man, who built his own solar power system.
    Puerto Rico suffers island-wide power outage
    Puerto Rico suffers island-wide power outage

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      Puerto Rico suffers island-wide power outage

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    Puerto Rico suffers island-wide power outage 01:20
    The robots are coming
    Watch (and weep) as a robot builds an IKEA chair in just 20 minutes. It takes us humans that long just to decipher the instructions.
    Watch this robot build an IKEA chair in minutes
    Watch this robot build an IKEA chair in minutes

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      Watch this robot build an IKEA chair in minutes

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    Watch this robot build an IKEA chair in minutes 00:57
    Banks behaving badly
    The top bank in Australia is in hot water after it admitted to charging fees to customers it knew were already dead.

    TOTAL RECALL

    Quiz time
    Saudi Arabia ended a 35-year ban on movie theaters with the screening of what film?
    A. "A Quiet Place"
    B. "Black Panther"
    C. "Rampage"
    D. "Blockers"
    Play "Total Recall," CNN's weekly news quiz, to see if you're right.

    TODAY'S NUMBER

    $1 billion
    That's the fine federal regulators will hit Well Fargo with for charging mortgage borrowers unfair fees and forcing customers into car insurance.
    Wells Fargo managers: Pressure was too much
    Wells Fargo managers: Pressure was too much

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      Wells Fargo managers: Pressure was too much

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    Wells Fargo managers: Pressure was too much 03:48

    AND FINALLY

    Soul jam
    Postmodern Jukebox is back, this time with a soulful cover of the Cranberries' "Zombie." (Click to view.)