Some countries will face full bans.
On Sunday evening, President Trump issued a presidential proclamation placing indefinite travel restrictions on visitors from eight nations: Chad, Libya, Syria, Yemen, North Korea, Venezuela, Iran, and Somalia.
In a tweet announcing the extension of the executive order, Trump said: "Making America safe is my number one priority".
"The Trump administration will ensure we only admit those who can be properly vetted and will not pose a threat to national security or public safety", a White House official said when asked about the Journal's story on Friday.
Donald Trump opened himself to what could be a new wave of legal challenges with a revised travel ban that adds three countries to the list of nations facing restrictions on entering the United States.
Already issued valid visas would not be revoked and case-by-case waivers would also be taken into consideration if the citizens from the barred nations meet the required criterion such as having previously worked or studied in the United States for an extended period of timing, having "significant business or professional obligations" in the USA or having previously established "significant contacts" in the nation. In some cases, these countries also have a significant terrorist presence.
The March 6 order was itself Trump's second attempt to impose a travel ban after his original, much broader January 27 plan was blocked by lower court following turmoil at US airports caused by its abrupt rollout.
The officials say these states failed to comply with the USA information-sharing requirements that aim to make vetting processes stronger.
The DHS has been developing a new security baseline, which includes factors such as whether countries issue electronic passports with biometric information, report lost or stolen passports to Interpol - an global law enforcement body - and share information about travellers' terror-related and criminal histories.
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That could range from a complete ban to more stringent screening measures for citizens of countries that haven't complied with new US benchmarks.
Speaking on background, government officials said the addition of North Korea and Venezuela demonstrated the measure was set on the basis of security and was not a "Muslim ban", as detractors have argued.
What that means in practice is that the new restrictions vary by country.
Iran, Libya, Syria, Yemen and Somalia were left on the list of affected countries in a new proclamation issued by the president on Sunday.
For instance, foreign nationals from North Korea are banned, but a student from Iran will be allowed in, subject to "enhanced screening and vetting requirements", CNN quoted the White House statement as saying. Such additional scrutiny will also be required for Somali citizens applying for all non-immigrant visas.
Last week, Trump hinted he was prepared to extend and expand the ban.
"The travel ban into the United States should be far larger, tougher and more specific-but stupidly, that would not be politically correct!"
Critics have accused the president of overstepping his authority and violating the U.S. Constitution's protections against religious bias.
And with North Korea and leftist Venezuela joining the list, some people are happy.