A group of experts on Tuesday warned a House panel that artificial intelligence is not capable of sweeping up the full breadth of online extremist content -- in particular posts from white supremacists. At a House Homeland Security subcommittee hearing, lawmakers cast doubt on claims from top tech companies that artificial intelligence, or AI, will one day be able to detect and take down terrorist and extremist content without any human moderation. Rep. Max RoseMax RoseCongress needs to continue fighting the opioid epidemic Hillicon Valley: Investigation finds federal agencies failed to address cyber vulnerabilities Officials crack down on illegal robocallers Warren offers plan to secure elections Senators grill Google exec on'persuasive technology' Artificial intelligence can't solve online extremism issue, experts tell House panel MORE (D-N.Y.), the chairman of counterterrorism subcommittee holding the hearing, said he is fed up with responses from companies like Google, Twitter and Facebook about their failure to take down extremist posts and profiles, calling it "wanton disregard for national security obligations." "We are hearing the same thing from social media companies, and that is, 'AI's got this, it's only gonna get better,' " Rose said during his opening remarks. "Nonetheless ... we have seen egregious problems."