The 18-year-old man accused of the racist rampage at a supermarket in Buffalo, New York, Saturday followed a pattern becoming disturbing familiar for such attacks: online radicalization. The suspect allegedly wrote and posted a 180-page document before the mass shooting, citing various racist and anti-Semitic memes and conspiracy theories from websites such as 4chan. Federal officials are paying attention to this growing threat. President Joe Biden’s latest budget allocates $33 million for the FBI to investigate domestic terrorism. Jared Holt, a resident fellow at the Atlantic Council’s Digital Forensic Research Lab, spoke with Marketplace’s Kimberly Adams about how the Justice Department has shifted efforts to address online extremism in the United States. He noted that it still has progress to make.

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