[Best Johnny Carson accent] I didn't know that about the anti-Lincoln strategy.

The main difference today: there are thousands (maybe hundreds of thousands) who fantasize about being the next John Wilkes Booth. Will any of them actually take up arms? A few have already tried.

As I mentioned elsewhere, I was taught by a high school teacher who believed in the Dunning School of Reconstruction history ("The Tragic Era" by Claude C. Bowers, which was somewhat sympathetic toward Andrew Johnson as a supporter of the Southern cause). Nowadays, it's the Dunning-Kruger school.