Dozens of people on an FBI terrorist watch list were in Washington, D.C., on January 6, when President Trump incited a violent mob of insurrectionists to attack the Capitol. That’s according to The Washington Post, which reports most of the rioters flagged by the national Terrorist Screening Database are white supremacists. The FBI says more than 100 insurrectionists have been arrested so far, with more than 200 other suspects identified. Among the latest arrests are Kevin Seefried, who was photographed carrying a Confederate battle flag through the halls of Congress; former U.S. Olympic medalist Klete Keller, who wore his Olympic swim team jacket to the riots; and Robert Sanford, a retired firefighter who was filmed throwing a fire extinguisher at Capitol Police officers, striking three of them in the head.