Editor's Note: ­ This security-focused assessment is one of many such analyses found at Stratfor Threat Lens , a unique protective intelligence product designed with corporate security leaders in mind. Threat Lens enables industry professionals and organizations to anticipate, identify, measure and mitigate emerging threats to people, assets and intellectual property the world over. Threat Lens is the only unified solution that analyzes and forecasts security risk from a holistic perspective, bringing all the most relevant global insights into a single, interactive threat dashboard. Violence between the Cartel del Noreste (CDN) and state police has been surging in the Mexican border city of Nuevo Laredo in Tamaulipas state over the past two weeks.