The Southern Poverty Law Center has released its annual report on "The Year in Hate and Extremism," in which the organization estimates the size of the "extremist" threat. Since its count of hate groups has dropped since last year—the number went down from 1,018 to 1,007—the center is hyping a 7 percent increase in another category: what it calls "conspiracy-minded antigovernment 'Patriot' groups." The SPLC's definition of "Patriot" is pretty broad: The list ranges from the conservative websites WorldNetDaily and FreeRepublic.com to the Moorish Science Temple and its offshoots. The Moors, a black militant movement, are presumably included because they...