Source: April 2009, DHS Office of Intelligence and Analysis, report "Rightwing Extremism: Current Economic and Political Climate Fueling Resurgence in Radicalization and Recruitment" Page 7.
(U//FOUO) Lone Wolves and Small Terrorist Cells
(U//FOUO) DHS/I&A assesses that lone wolves and small terrorist cells embracing violent rightwing extremist ideology are the most dangerous domestic terrorism threat in the United States. Information from law enforcement and nongovernmental organizations indicates lone wolves and small terrorist cells have shown intent—and, in some cases, the capability—to commit violent acts.
— (U//LES) DHS/I&A has concluded that white supremacist lone wolves pose the most significant domestic terrorist threat because of their low profile and autonomy—separate from any formalized group—which hampers warning efforts.
— (U//FOUO) Similarly, recent state and municipal law enforcement reporting has warned of the dangers of rightwing extremists embracing the tactics of “leaderless resistance” and of lone wolves carrying out acts of violence.
— (U//FOUO) Arrests in the past several years of radical militia members in Alabama, Arkansas, and Pennsylvania on firearms, explosives, and other related violations indicates the emergence of small, well-armed extremist groups in some rural areas.
The "very serious people" got all excited when the Bush DHS produced a report (published by the Obama DHS) pointing out the obvious, that Right-Wing extremists posed a great terrorist threat to the US, and brow beat the administration to back away from that assessment.
But now we've got an industry in place (Limbaugh, Beck, Fox) whose sole purpose seems to be finding hot buttons to egg on the armed extremists and precipitate these sorts of attacks.
I wonder how many more are going to have to be killed before the Republicans and their fellow travelers finally realize that the law and order that they claim to want can't be obtained without controlling (specifically taking away the guns from) the unstable segment of their community? Unfortunately, many more than any of us can imagine.