An extremely interesting post (Mchangama, as many of you know, is a historian of free speech, among other things):

[I]t's not surprising that a man in Douglass' position would appeal to free speech given the draconian censorship of abolitionist ideas in the South, the hostile mobs he often had to confront and more generally his membership of an unpopular minority that suffered pervasive stigma and discrimination. In such a vulnerable situation it's not hard to see how the right of free speech can be invoked as a shield against majoritarian intolerance and a precondition for speaking truth to power.

But as everyone who cares deeply about free speech knows all too well, the real test for free speech defenders is not whether you advocate free speech for yourself and the ideas you want to advance. The real test is whether you also defend the rights of those you most vehemently disagree with and are willing to take a stand for the right to express deeply unpopular ideas no matter how massive and vocal the public backlash.

A great topic to test Douglass' free speech philosophy and consistency is wartime restrictions. National security is and remains one of the essential drivers of censorship. As witnessed by World War I and the subsequent First Red Scare, such wartime restrictions can often extend beyond and outlive any genuine and pressing requirements, and end up targeting dissent and opposition alleged to threaten national unity.

Douglass lived through the American Civil War; a war fundamentally fought over the very question of slavery, which also animated Douglass' personal struggle. He therefore had a deeply personal stake in the outcome of the war and in supporting one side against the other, both when they faced off on the battlefield and when they clashed in the public square. So what does the record say? …