Trump's plan to admit only people "who share our values and respect our people" didn't indicate how it would be applied. It also didn't say whether all visa holders -- visitor, H-1B and green card -- would be subject to an ideological litmus test.
And what is the correct answer to such a question about American values?
"If you ask people born in this country what is an American ideology, I'm not quite sure that we would come out with one answer," said Jessica Lavariega-Monforti, a professor and chair of the political science department at Pace University in New York.
"The immigration system, as it currently stands, could not process additional vetting without creating backlogs and increasing wait times for applicants. At the same time, it is unclear how these policy changes would increase safety against a terrorist attack," said Lavariega-Monforti.
John Lawit, an immigration attorney in Irving, Texas, said the U.S. already has a vetting process that begins as soon as someone applies for a tourist visa. There are different levels of threat, such as being a citizen of Syria, that trigger a much higher level of vetting, he said.
"There is a huge financial commitment that must be made in terms of human resources in order to carry on such a vetting program, and a huge, huge increase in fees,” Lawit said.
Requiring oaths of some kind is "a lot of posturing with very little substance," he added, and are ineffective in improving security.
Lawit said he once assisted H-1B workers who were employed in non-classified jobs at the Sandia and Los Alamos National Laboratories. The processing time for security checks could run months. That's an example of extreme vetting, while "extraordinary detailed security investigations are conducted," he said.
Sign up for CIO Asia eNewsletters.
Veeam for the Microsoft Cloud provides a consolidated solution for virtual, physical and cloud-based workloads with integrations for Microsoft Azure and Office 365.
Veeam Backup & Replication provides full support for VMware vSAN, enabling faster backups through smart logic that reduces network traffic and enables backup and restore for the storage policy associated with the VM.
How can financial institutions be faster, smarter and more responsive? Find out how they can avoid the risk of becoming irrelevant with insights into digitization strategies, beefing up on data security and ensuring data quality.
Eric Schnatterly, Vice President IBM Systems for Cloud Platforms, Asia Pacific, talks about the company’s latest pipeline of innovation in the cloud and data space
The threat of ransomware is real and should be top of mind for CIOs as well as technology administrators of all types. In this brief, Veeam® will share some key tips to add ransomware resiliency to provide the best levels of Availability for critical applications and data.