The Southern Law Poverty Center reports:

The radical right caught fire last year, as broad-based populist anger at political, demographic and economic changes in America ignited an explosion of new extremist groups and activism across the nation.

Hate groups stayed at record levels — almost 1,000 — despite the total collapse of the second largest neo-Nazi group in America. Furious anti-immigrant vigilante groups soared by nearly 80%, adding some 136 new groups during 2009. And, most remarkably of all, so-called “Patriot” groups — militias and other organizations that see the federal government as part of a plot to impose “one-world government” on liberty-loving Americans — came roaring back after years out of the limelight.

The anger seething across the American political landscape — over racial changes in the population, soaring public debt and the terrible economy, the bailouts of bankers and other elites, and an array of initiatives by the relatively liberal Obama Administration that are seen as “socialist” or even “fascist” — goes beyond the radical right. The “tea parties” and similar groups that have sprung up in recent months cannot fairly be considered extremist groups, but they are shot through with rich veins of radical ideas, conspiracy theories and racism.

“We are in the midst of one of the most significant right-wing populist rebellions in United States history,” Chip Berlet, a veteran analyst of the American radical right, wrote earlier this year. “We see around us a series of overlapping social and political movements populated by people [who are] angry, resentful, and full of anxiety. They are raging against the machinery of the federal bureaucracy and liberal government programs and policies including health care, reform of immigration and labor laws, abortion, and gay marriage.”