Hello! Here’s what’s happening on Monday.

1. North Korea will invite US experts to witness its nuclear site shutdown in May. On Friday, Kim Jong Un and South Korean President Moon Jae-in said they wanted to achieve “complete denuclearization” of the Korean Peninsula.

2. UK Home Secretary Amber Rudd resigned. Rudd is the fourth minister to resign in half a year.

3. Angela Merkel warned that the EU will “defend its interests” if its not exempted from US tariffs. The EU’s temporary exemption from taxes on aluminum and steel imports expires on Tuesday.

4. Australia is sending a surveillance aircraft to monitor potential sanction breaches by North Korea. North Korea regularly breaches sanctions by orchestrating ship-to-ship transfers in the high seas.

5. China is monitoring workers' brains to increase productivity and profits. Some workers have started wearing caps that monitor their brainwaves, and the data is used by management to readjust work flow.

6. Saudi Arabia's Crown Prince said Palestinians should accept peace or "shut up and stop complaining." Saudi Arabia has historically played a central role in Middle East peace talks but it may now be growing tired of its role as mediator.

7. US telecom giants T-Mobile and Sprint are forming a new $146 billion new company. The agreement marks the culmination of four years of on-again, off-again discussions.

8. A blast in Kabul, Afghanistan, killed 21 people. No group has claimed responsibility for the attack, which came just a week after a bomb at a voter registration center killed 60 people.

9. Philippines' President Rodrigo Duterte praised Kim Jong Un as a "hero of everybody." Duterte previously called Kim a "fool" and said he was "playing with dangerous toys."

10. Iranian activists are scrawling their protests on thousands of bank notes to avoid censorship. Iran has arrested upwards of 5,000 people during recent protests and has been cracking down on online dissent.

And finally...

Computers in North Korea run on look-alike Mac software called 'Red Star 3.0' - see what it looks like to log in and use it.