Donald Trump has said he would be open to having a “Muslim database” in the US in the wake of the Paris attacks.
The Republican presidential hopeful said in an interview with Yahoo Politics that he would consider “drastic measures” for monitoring the community.
Asked if that may include registering Muslims in a database or using special ID cards, Donald Trump did not rule it out.
ISIS militants said they carried out the attacks in Paris.
The suicide bombs and shootings at various venues across Paris killed 129 people on November 13.
“We’re going to have to do things we never did before,” said Donald Trump, a frontrunner in the Republican race for the White House.
“And some people are going to be upset about it, but I think that now everybody is feeling security is going to rule.”
Donald Trump told Yahoo Politics certain things would have to be done “that we never thought would happen in this country in terms of information and learning about the enemy.”
The US is going to have to do certain things that were “frankly unthinkable a year ago,” said Donald Trumo, who has previously said mosques should come under surveillance and Syrians should be deported.
Dozens of state governors and Republican lawmakers have called for a halt to the processing of Syrian refugees into the US.
One of the suicide bombers in Paris is thought to have entered Europe with refugees fleeing the Syrian civil war.
A bill tightening the vetting restrictions is due to come before Congress on November 19.
This week, President Barack Obama criticized Republicans as hysterical and un-American for saying the US should not accept Muslim refugees.