A short and meticulous account of the U.S. government's efforts to snuff out black radicalism during the early 20th century, focusing specifically on publications and individuals believed to be tied to Bolshevism and the pan-Africanist Garveyite movement. The book provides a glimpse into the intense paranoia of federal investigators as well as the motivations and reports of some of the black informants who helped undermine these movements, though it is not unsympathetic to the informants predicaments.
There were many parallels between this effort to suppress black radicals and their publications and the current government efforts to snuff out "Islamic radicals." In both cases certain publications and individuals themselves have been viewed as types of inciters, although many of them are simply documenting an agenda of actually existing wrongs. Because the white federal investigators were simple unable to conceive why blacks were so angry about lynchings and inequality, they wrong attributed the growing unrest in the country to radical publications stirring things up. Just like with the Islamic radicals however, the actual number of black Bolsheviks in America was never high (the Garveyites had a bit more traction but their main base was in the Caribbean). Much energy was expended crushing a few hapless socialist organizers but as the government later conceded blacks in America were for the most part too economically oppressed to begin to consider revolutionary politics, a conclusion in line with Marx's own analyses of revolutionary change.
While there is a lot of history laid out here for posterity, the book itself is a bit repetitive at times. The federal government tried to stop a lot of publications, felt paranoid and overblew the level of actual threat. Black Bolshevism never became the threat they feared but it never really was in the first place. If nothing else the federal government ruined the lives of a few eloquent activists for the purpose of snuffing out an ephemeral threat, without even trying to understand why blacks might be attracted to a radical emancipatory ideology in the first place.