Republican nominee Donald Trump said the country needs “very smart people” to vet immigrants coming into the country under his proposed scrutiny of social media accounts.

{mosads}During an interview airing Wednesday night, Fox News host Sean Hannity asked Trump how he would “vet what’s in their heart,” referencing people coming to the U.S. from places where “men can tell women how to dress and they can’t drive and they can’t go to school and you can’t build a church or a temple.”

“You get very smart people,” Trump responded. “And there are those people. And they’re very good at understanding what’s going on.”

Beyond that, Trump said security needs to scrutinize potential immigrants’ social media accounts.

“I mean they’re better at social media than we are,” the billionaire said.

“ISIS, if you look at what ISIS is doing with social, they’re recruiting over the internet. And I also said we have to end that. We have to knock it out.”

He then referenced the terrorist attack in San Bernardino, Calif., saying if the country had looked at the social media accounts of shooter Tashfeen Malik before she came into the country, it would have seen she was “trouble.”

“She came in. She probably radicalized the husband,” Trump said. “What a — what a couple that was. That was a real beauty.”

Trump was also asked what he would do about people with extreme views in the country. Hannity referenced the father of the Orlando nightclub shooter, who attended a rally for Democratic nominee Hillary Clinton earlier this month.

“I’d throw him out. If you look at him, I’d throw him out,” Trump said.

Trump during a speech earlier this week proposed ideological screenings for people looking to enter the country. He said he would set up an “extreme vetting” system so only those who are committed to America and its Constitution would be allowed in.

He said the system would ensure people who sympathize with terrorist groups or who have negative attitudes toward the U.S. would be not be allowed entry.