US flag   Official website of the Department of Homeland Security

Resource Directory

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The Department of Homeland Security (DHS) conducts tests to evaluate the performance of radiological and nuclear detection systems (to include technology components, algorithms and materials), at specialized facilities, laboratories, or operational venues. The Domestic Nuclear Detection Office leads the Department’s efforts to test and evaluate these technologies.
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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.

| Event
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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).

| Campaign
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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.

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The Office of the Secretary oversees the Department's work to enhance security, protect cyberspace, administer immigration and respond to disasters.

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A listing of all components, directorates and offices with websites or webpages on DHS.gov that currently make up the Department of Homeland Security.

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Cyber Resources for Industry
| Campaign
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With the "If You See Something, Say Something™" campaign and the NSI help promote the concept of hometown security, progress on the goals of the two campaigns is being made. Such progress involves creating partnerships. Currently, the Department has launched "If You See Something, Say Something™" across numerous states as well as the private sector.

| Campaign
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The Stop.Think.Connect. team recommends a few simple things you can do to stay safe online.
| Resources
| Site Page
The Stop.Think.Connect. team recommends a few simple things you can do to stay safe online.

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