According to the State Department, the Diplomatic Security Service has more than 2,500 staff serving worldwide as special agents, security engineering officers, security technical specialists ...

The State Department said it is reviewing an “incident” with Secretary of State Marco Rubio’s security detail during last ...

The Diplomatic Security Service veteran was a senior agent and shift supervisor sent to Brussels as part of the advance party responsible for conducting security preparations for Rubio’s visit ...

An agent on Secretary of State Marco Rubio's Diplomatic Security Service protective detail was arrested in Brussels after fighting with hotel staff and police.