Expert warns US extremists are exploiting social media for money and power Fox News Digital spoke with terrorism expert Dr. Casey Babb about a recent NYU study that found U.S. extremists are exploiting social media with far fewer limits than foreign terrorist groups. NEW You can now listen to Fox News articles! Extremist groups in America are exploiting social media’s chaos and cashing in on it, as violent rhetoric spreads faster than platforms can contain it, according to a new report and