Hate groups migrate online, making tracking more difficult

FILE - In this Nov. 5, 2020, file photo, Jacob Anthony Chansley, who also goes by the name Jake Angeli, a Qanon believer speaks to a crowd of President Donald Trump supporters outside of the Maricopa County Recorder's Office where votes in the general election are being counted, in Phoenix. In its annual report set to be released Monday, Feb. 1, 2021, the Southern Poverty Law Center said it identified 838 active hate groups operating across the U.S. in 2020. (AP Photo/Dario Lopez-Mills, File)

FILE - In this Jan. 6, 2021, file photo, Trump supporters, including Doug Jensen, center, confront U.S. Capitol Police in the hallway outside of the Senate chamber at the Capitol in Washington. In its annual report set to be released Monday, Feb. 1, 2021, the Southern Poverty Law Center said it identified 838 active hate groups operating across the U.S. in 2020. The SPLC’s report comes out nearly a month after a mostly white mob of Trump supporters and members of far-right groups violently breached the U.S. Capitol building. (AP Photo/Manuel Balce Ceneta, File)

FILE - In this Jan. 6, 2021, file photo, people march with those who say they are members of the Proud Boys as they attend a rally in Washington in support of President Donald Trump. In its annual report set to be released Monday, Feb. 1, 2021, the Southern Poverty Law Center said it identified 838 active hate groups operating across the U.S. in 2020. The SPLC’s report comes out nearly a month after a mostly white mob of Trump supporters and members of far-right groups violently breached the U.S. Capitol building. (AP Photo/Carolyn Kaster, File)

FILE - In this Jan. 6, 2021, file phtoo, Trump supporters try to break through a police barrier at the Capitol in Washington. In its annual report set to be released Monday, Feb. 1, 2021, the Southern Poverty Law Center said it identified 838 active hate groups operating across the U.S. in 2020. The SPLC’s report comes out nearly a month after a mostly white mob of Trump supporters and members of far-right groups violently breached the U.S. Capitol building. (AP Photo/John Minchillo, File)

FILE - In this Sept. 26, 2020, file photo, member of the Proud Boys, right, stands in front of a counter protester as members of the Proud Boys and other right-wing demonstrators rally, in Portland. In its annual report set to be released Monday, Feb. 1, 2021, the Southern Poverty Law Center said it identified 838 active hate groups operating across the U.S. in 2020. (AP Photo/John Locher, File)

During one of the most politically divisive years in recent memory, the number of active hate groups in the U.S. actually declined as far-right extremists migrated further to online networks, reflecting a splintering of white nationalist and neo-Nazi groups that are more difficult to track.