In the face of the rising threat of ISIS, the Department of Defense has put military bases across the U.S. on the highest alert since the tenth anniversary of 9/11.

Lt. Col. Tony Shaffer (Ret.), Senior Fellow with the London Center for Policy Research, appeared on "Fox and Friends Weekend" to share insight on if this will be enough to stop another terror attack on U.S. soil.

Shaffer said that the feds should be much clearer that there is indeed a legitimate, credible threat, but they're downplaying it for political purposes.

"I think so much pressure is being put on them to basically not admit that we have an ISIS problem, I think it's almost criminal," Shaffer stated.

How can we combat the mindset of radical, violent Islamists? Ainsley Earhardt asked.

"You have to accept that there is a certain group that [is] going to be drawn into this. They are," Shaffer said.

"What you then have to do is essentially monitor and isolate them as long as you can. And then anticipate what's going to happen," Shaffer explained. "I'm not saying you should round up people and put them in prison. I'm saying certain patterns are apparent and become apparent right before they become ready to radicalize."

Watch more in the "Fox and Friends Weekend" clip above.

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