United States
Costas advises DoD intelligence chief
Marcel Lettre, who was recently-appointed under-secretary of defence for intelligence, has hired a discreet firm to help him fulfil his mission.
The FBI (Federal Bureau of Investigation) combines the role of a US federal police force and an internal intelligence service. It comes under the authority of the Department of Justice and oversees the police authorities at the federal level. A member of the US intelligence community, the FBI often competes with the CIA on terrorism and counterintelligence cases.