If one wants to bring up the past..
1930s...
The Business Plot..
http://en.wikipedia.org/wiki/Business_Plot
America's leading capitalists were panicked after Roosevelt's first 100 days. Accustomed to enjoying complete control over the government during the preceding 12 years of Republican rule, they found FDR's rhetoric and more importantly, action to constitute a threat to their dominance of American economic and political life. They looked abroad and saw ruling Fascists in Italy and Spain and a rising Nazi Party in Germany and thought their fortunes would fare better under a similar regime if it could be instituted in the United States.
These were men of action: Rene DuPont of the chemical fortune, the Heinz family, several wealthy men connected with J. P. Morgan includng Thomas Lamont, and Prescott Bush (father of George H.W.Bush and grandfather of George W. Bush) whose connections with the Nazis continued through 1942. Politicians were included as well as Wall Street interests. Among them were two previous Democratic Party candidates for President: John Davis and Al Smith.
Their plan was to overthrow the government of the United States.
Their plan depended upon three distinct elements:
1. The Public Face: The American Liberty League..Funded by the DuPonts and U.S. Steel, General Motors, General Foods, Standard Oil, Birdseye, Colgate, Heinz Foods, Chase National Bank, and Goodyear Tire and Rubber Company, the League was "the front for the whole thing" according to Gerald MacGuire, the New York City stockbroker who was one of the conspirators.
2. Fascist thugs like the Black Legion , the Silver Shirts, and of course, the Ku Klux Klan. The Black Legion was organized into arson squads, execution squads and anti-Communist squads. They wore a skull and crossbones on their uniforms to boast about the Communists they had murdered.
3. The Super Soldiers, an army of
500,000 veterans mobilized by the American Legion. The troops would gather in Washington, surround the White House and demand Roosevelt's resignation. If he said no, they would kill him.
The conspirators needed a trusted, charismatic leader for their private army, and tried to recruit retired
Marine General Smedley Butler. This was their mistake because Butler had no use for these capitalists. He led MacGuire and his backers on long enough to get the details of the plot, then blew the whistle on them.
The House Un-American Activities Committee convened hearings and heard Butler's testimony, most of it in private. They returned with a whitewashed report that focused on MacGuire but expunged all the information given them by Butler about the plutocratic backers. Butler expressed his disgust with the report, "They have slaughtered the little guys and let the higher-ups escape." The press quickly let the matter vanish from its pages, and some historians believe that Roosevelt allowed the conspirators off the hook in exchange for their toning down their attacks on the New Deal.
From the Left...
The Weather Underground..
http://en.wikipedia.org/wiki/List_of_Weatherman_actions
For the Weathermen, violent action was nothing short of necessary in a time of crisis, a last-ditch effort to grab the country’s attention. And grab attention they did—in March 1970, just days after Bernardine Dohrn publicly announced a “declaration of war.” When an accidentally detonated bomb killed three Weathermen in the basement of a Manhattan townhouse, the group suddenly became the target of an FBI manhunt, and members were forced to go into hiding. The bomb had been intended to be set off at a dance at a local Army base.
How did the Weathermen arrive at this point? Some of the group’s former members, interviewed in THE WEATHER UNDERGROUND, cite the murder of Black Panthers Fred Hampton and Mark Clark in a December 1969 Chicago police raid as a turning point. What many believed to be a government-sanctioned killing in an effort to wipe out militant groups such as the Panthers was, for the Weathermen, the final straw.
In 1960, nearly 50 percent of America’s population was under 18 years of age. This surplus of youth set the stage for a widespread revolt against the status quo: against previously upheld structures of racism, sexism and classism, against the violence of the Vietnam War and America’s interventions abroad. At college campuses throughout the country, anger against “the Establishment’s” practices turned to protest, both peaceful and violent.
As the decade continued, the Student Nonviolent Coordinating Committee, an organization founded by Martin Luther King, Jr. in order to promote nonviolent protest, grew increasingly militant—as did the mostly white, middle-class “New Left,” which took cues from the civil rights movement, protested policies both home and abroad, and sparked factions like the Weathermen.
It's the SCALE of the Right wing's actions that make it different from the Left.....
But methods can be similar..and the technology as well..
I'm sure that had the public internet existed in the 1960s, the Weather Underground would have used truck bombs on the Pentagon...