GOP presidential hopeful Ben Carson argued on Sunday that anyone with “big frontal lobes” could see that the U.S. must not accept refugees from Syria.

Following recent terrorist attacks in Paris, Carson vowed to reverse President Barack Obama’s policy of accepting up to 10,000 Syrian refugees.

“Bringing people into this country from that area of the world, I think, is a huge mistake,” Carson opined to Fox News host Chris Wallace. “Because why wouldn’t [ISIS] infiltrate [the refugees] with people who are ideologically opposed to us? It would be foolish for them not to do that.”

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“We should use our expertise and resources to help get them resettled — over there — and to support them over there,” he said. “But to bring them here under these circumstances is a suspension of intellect.”

“You know that the human brain has these big frontal lobes, as opposed to other animals, because we can engage in rational thought processing.”

The former neurosurgeon noted that his advanced brain gave him the ability to “extract information from the past [and] present, process it, and project it into a plan.”

“Animals, on the other hand, have big brain stems and rudimentary things because they react,” Carson explained. “We don’t have to just react, we can think.”

Watch the video below from Fox News Sunday, broadcast Nov. 15, 2015.