Although overt repression has been studied extensively (e.g., mass arrests), there have been no rigorous investigations of covert repressive action (CRA; e.g., electronic and physical surveillance). To better under-stand the latter behavior, the author uses new data about U.S. domestic intelligence activity directed against a Black Nationalist organization in Detroit, Michigan, during the late 1960s and early 1970s (N = 3,136, by neighborhood-month). In line with existing research, evidence reveals that CRA responds to dissent, lagged repression, and the level of economic development within a neighborhood. Differing from existing litera-ture, however, results also disclose that CRA responds to where dissidents live and, most important, in accor-dance to the racial characteristics of the neighborhood within which potential targets are located. Wiretaps and tails are thus prompted by numerous factors, but the identity of challengers (i.e., political "profiling") proves to be an essential part of the explanation. Most people are aware that governments use covert repressive action (CRA) 1 to col-lect information about social movement organizations (SMOs) that challenge their authority as well as suspected sympathizers of these movements for the purpose of general awareness, preparing overt repressive activity, legal prosecution, and black-mail. These acts of "domestic intelligence" include numerous techniques: 1. This phrase must be clearly defined. Drawing on the work of Arthur Zuehlke (1980), one could divide the subject of covert repressive action into four topic areas: collection, analysis, counterintelligence, and covert action. Within the intelligence literature, covert action refers to directly influencing events within a target group (e.g., through propaganda, political action, paramilitary action, or intelligence assistance). In this article, I use the phrase in the more popularly understood manner (i.e., the collection of information).