The security agencies, like the NSA, CIA, Homeland Security and the FBI.
National Operations Center (NOC) [in older resources the NOC was designated HSOC or Homeland Security Operations Center]
Secretary of the Department of Homeland Security
National Security Council
homeland defense and civil support operations
An inherent responsibility of every level of government.
homeland security, in 2002
Homeland Security is the concept of protecting a nation's personal affairs from international as well as domestic dangers. Countries such as France have prepared departments of Homeland Security Many other countries have agencies that are responsible for maintaining the security of the country. Most notably, perhaps, is the system employed in Israel.
Yes off course homeland security increased the security
Joint Publication 3-26, Homeland Security National Strategy for Homeland Security
Department of State Intelligence, Department of Energy Intelligence, Department of Homeland Security Intelligence, Department of Treasury Intelligence, Federal Bureau of Investigation, and Drug Enforcement Administration.
Top secret agencies around the world include the CIA (Central Intelligence Agency) in the United States, known for its foreign intelligence operations; MI6 (Secret Intelligence Service) in the UK, which focuses on overseas intelligence gathering; and the FSB (Federal Security Service) in Russia, responsible for domestic security and counterintelligence. These agencies operate with a high level of secrecy and are integral to national security, often engaging in covert operations and intelligence analysis. Other notable agencies include the Mossad in Israel and the NSA (National Security Agency) in the U.S., which specializes in signals intelligence.