Thousands of police officers gathered in Washington, D.C. tonight for the 27th Annual Candlelight Vigil that honors fallen law enforcement officers. 

Greta Van Susteren reported from the event and said that 273 names are being added to the National Law Enforcement Officers Memorial.

U.S. Secretary of Homeland Security Jeh Johnson spoke to Van Susteren about why it's important for America's leaders to honor law enforcement officers. 

Johnson told her that it means a tremendous amount for him to be at the memorial.

"More and more we have to depend upon local [and] state law enforcement and our overall homeland security mission," he explained. "So it's important that I and other national leaders be out here on events like this."

"...We should honor our heroes in law enforcement who are gone and those who are still with us," Johnson added. 

Watch the video above.

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