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Diplomatic Security (DS) is the federal law enforcement and security bureau of the Department of State. Tasked with securing diplomacy and protecting the integrity of U.S. travel documents, the Diplomatic Security Service (DSS) has the largest global reach of any U.S. federal law enforcement agency, with offices in 29 U.S. cities and in more than 270 locations around the world.


DSS traces its origins to World War I when, on April 4, 1916, U.S. Secretary of State Robert Lansing formally established the Department of State’s first security office.

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Working for DSS

DSS has more than 2,500 special agents, security engineering officers, security technical specialists, and diplomatic couriers working and traveling worldwide.

No matter which professional, academic or personal path you have taken in life, you can turn your unique perspectives and law enforcement, technical, or engineering skills into an exciting public service career.

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DS Memorial

Located inside the DS headquarters in Rosslyn, Virginia, the DS Memorial is a tribute to DS personnel who lost their lives in the line of duty.

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DSS Publications

The latest documents, reports, and publications from DSS.

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Contact Us

We welcome your comments, inquiries, and suggestions.

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U.S. Department of State

The Lessons of 1989: Freedom and Our Future