The technology giants that produce these sleek electronic consumer goods argue that they observe the necessary regulations with respect to local labor practices and environmental protection. In fact, the book astutely shows how lax enforcement by a weak and corrupt Congolese state has allowed shocking abuses in the working conditions and treatment of miners, as well as the degradation of the environment in the region with appalling health consequences for locals. Kara also reveals a system of intermediary agents that connects individual miners to a diffuse array of buyers, depots, concessionaires, processors, and refining industries that all take in a share of the value of the mined cobalt. At the other end of this sequence of actors are the battery producers under contract with the global technology corporations, which can plausibly plead ignorance about the many abuses occurring at the far end of the chain.