The transit and border layer (Trans-Border) is composed of transit to the U.S. from a foreign port of departure or non-port of departure, as well as passing through the U.S. border prior to entering the U.S. interior. This represents the last opportunity to detect radiological or nuclear materials prior to their arrival onto U.S. territory, and initiatives in this layer emphasize maritime domain awareness related to preventive radiological/nuclear detection.
The nation’s success in preventing nuclear terrorism is a result of the close collaboration between the Department and its international, federal, state, local, tribal, and territorial partners.
The National Strategy for Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Standards lays out the federal vision and goals to achieve a comprehensive structure for coordination, establishment, and implementation of CBRNE equipment standards by 2020.
The Ombudsman's Office hosts public stakeholder events to share information, receive feedback on specific topics, and to hear your comments and suggestions regarding your interactions with the U.S. Citizenship and Immigration Services (USCIS).
To support the nationwide launch of the "If You See Something, Say Something™" public awareness campaign, Secretary Janet Napolitano released a series of Public Service Announcements (PSAs) encouraging the public to contact local authorities if they see suspicious activity.
The Office of the Secretary oversees the Department's work to enhance security, protect cyberspace, administer immigration and respond to disasters.
A listing of all operational and support components that comprise DHS, along with organizational charts that detail their structure and reporting relationships.