There's nothing people enjoy more than "old-fogeyism"....portraying everything in America's past through idyllic rose-colored glasses and portraying everything today as America going to hell in a handbasket and every new disaster or outrage as something totally new.
There's very little new under the sun. Anarchist bombings and assassinations were rampant around the world in the 1880-1930 or so period...including the assassination of President McKinley.
The only reason Anarchists didn't fly a jetliner into a skyscraper is that there had no jetliners at all and no skscrapers until late in the period. They assuredly would have if there had been both in 1920...they used avaliable technology as best they could to cause mayhem.
Another good example is the constant mistake by the media describing Columbine as the "Deadliest US school violence"..they were totally wrong. In 1927 some loon who was upset at high local taxes blew up an elementary school in Minnesota and killed 38 kids.
It's interesting also how the anarchist attacks were largely associated with recent Italian and Eastern European immigrants, and I speculated earlier how many Italian Americans or Eastern Europeans have been among the "deport all the towelheads" crowd on FR.