America's biggest act of terror before 2001 was the Oklahoma City bombing, which killed 168. The combined death toll in the worst attacks of the three decades prior was 14.
But as a new documentary makes clear, "the factions McVeigh represents, however marginalized they may be, continue to be a major bulwark of support for the newly inaugurated president, who is quicker to insult John Lewis than to cast off the affections of David Duke."