Ron Canazzi, a new contributor to KennedysAndKing, reviews Jonathan M. Katz’ new book Gangsters of Capitalism: Smedley Butler, the Marines, and the Making and Breaking of America’s Empire with a particular view toward the overlap of Smedley Butler’s military deployments with the business exploits of Sullivan Cromwell and Brown Brothers Harriman and toward the parallels with the assassinations of the 1960s and the insurrection of January 6^th, 2021.