As the United States and Great Britain prepare for possible terror attacks, ISIS militants are taking to social media to spread their message of terror worldwide.

'We Can't Appease This Ideology': Cameron Speaks After UK Raises Terror Threat Level

Calls are growing for private social media companies to block the ISIS accounts that have posted gruesome images, such as the beheading of American journalist James Foley.

On The Cost of Freedom today, John Layfield said it's a tough job for social media companies to keep track of countless changing accounts and passwords, but they need to crack down on terrorists who are posting images of war crimes or using social media as a recruiting tool.

Megyn: Americans Held Hostage By ISIS While Obama Goes Fundraising?!

Gary B. Smith disagreed, saying there are many horrible, immoral things online, and it's not a private company's job to regulate.

He added that a positive effect of ISIS's social media presence is that many people have been galvanized against them, pointing to the popular hashtag #StopISIS.

No ISIS Strategy? Keane Slams Obama’s ‘Extraordinary & Stunning Admission’

Jonas Max Ferris agreed that it can be good for the world to see ISIS militants for what they really are, but it is also a fine line to walk. We do not want to allow terroristic propaganda to flow freely.

Tracy Burns pointed out that Twitter and Facebook are a private companies that can do whatever they want, including making the decision that any known ISIS social media accounts should be deactivated and deleted.

Garrett Presses WH Spox: Action Against ISIS Is a 'Minor League Effort'

"We don't want this kind of stuff spread worldwide. We don't want them poisoning our young minds and the kids here in the United States," Burns said. "I say block as much as you can."

Watch the clip above.

Gutfeld to Colmes: Why Do Liberals Have a Hard Time Identifying Actual Evil?