The FBI has opened more than 300 domestic terrorism investigations since George Floyds death in Minneapolis kicked off nationwide unrest and riots, a federal attorney revealed Tuesday in a hearing on Capitol Hill on Antifa and violent protests. Erin Nealy Cox, a U.S. attorney tapped by Attorney General William Barr to lead a task force on violent anti-government extremists, said the feds have opened hundreds of federal criminal investigations surrounding the violence and rioting since May 28.