A recent report published by the Center for Strategic and International Studies (CSIS), “Left-Wing Terrorism and Political Violence in the United States,” risks feeding false narratives about political violence and polarization. The report’s authors, Daniel Byman and Riley McCabe, make a sweeping claim: 2025 is on “pace to be the left’s most violent year in more than three decades” and left-wing terrorism is “on track…to reach historically high levels.” The evidence used to sound this alarm consists of just five plots and attacks that occurred over a nearly seven-month period this year. According to the data presented in the report,...