information on trends on radical groups, grievances are and how they communicate as it's becoming apparent that nationalist congregate online. online platforms are also under the microscope for their role in publicizing attacks, live stream was shared on facebook, to yout, facebook remove 5d .5 million videos of the footage within 24 hours and basebook did -- facebook did not say how they missed the other. it's no more fault the platforms than the fault of the president who has been criticized for his immigration rhetoric. >> donald trump is no more to blame than what happened to new zealand than mark zuckerberg of facebook. find them, expose them, bring them to justice. >> new zealand is weighing ban