The vetting process is part of a larger effort to tighten any security loops for would-be visitors to the US.
President Trump's accidental 'covfefe' tweet took social media by storm on Tuesday night.
WhatsApp users are warned about scam message demanding money for 'lifetime subscription'.
The strange but heated Twitter spat featured historical facts, emojis and even GIFs of Benedict Cumberbatch.
'You used to call me on my cellphovfefe,' actress Sophia Bush tweeted.
Some joked that Trump brought back the glowing orb from Saudi Arabia with him to Washington.
One user tweeted May 'comes across like someone who has been caught lying on their CV at a job interview'.
'You're failing at realizing you're failing,' one Twitter user wrote.
The WikiLeaks founder also slammed the CIA saying it has 'no authority over leadership'.
'The omission of the First Gentleman of Luxembourg name is blatantly disrespectful,' a Facebook user said.
'What happened to all that stamina?' one wag wrote.
'Nailed the shade, one commenter wrote.
The goal is to create a system so that tweets 'don't go from the president's mind out to the universe', a report said.
'He seemed super duper excited to meet you as well,' one Twitter user wrote.
The abuse peaked after the EU referendum vote.
"The nation's English teachers bow their heads in shame," one user tweeted.
From bad roommates to prank websites, Zuckerberg revealed a few stories during his time at Harvard.
The proposals will be the first legislation at EU level targeting Facebook, Twitter and YouTube.
'The gates of hell are opening,' one Twitter user wrote.
The panel chair described the breach as part of a "sustained cyber campaign".
Grieving father warns parents about the "terrible things on social media".
"Some people just wanna watch the world burn," one person tweeted.
'The man has no rhythm,' one Twitter user wrote.
The leaked documents expose the inner workings of Facebook and how it decides what can be shared on the site.
Donald Trump's eldest daughter stepped in for him to deliver speech in Saudi Arabia.
It was one of many words the US president stumbled over during his address in Saudi Arabia.
The photo-sharing app is said to affect people's body image, sleep and anxiety.
'Please try not to embarrass us too much,' one Twitter user wrote.
Twitter decided to pull the plug on the popular short-form video app earlier this year.
'He really has trouble with the word 'counsel',' Teddy Goff, a former aide to Hillary Clinton tweeted.