Assistant Attorney General Matthew Olsen, testifying just days after the nation observed the one-year anniversary of the insurrection at the U.S. Capitol, said the number of FBI investigations into suspected domestic violent extremists has more than doubled since the spring of 2020.

“We have seen a growing threat from those who are motivated by racial animus, as well as those who ascribe to extremist anti-government and anti-authority ideologies,” Olsen said.

The formulation of a new unit underscores the extent to which domestic violent extremism, which for years after the Sept. 11 attacks was overshadowed by the threat of international terrorism, has attracted urgent attention inside the federal government and at the White House.