Clever Code Names the Secret Service Has Ever Used

Cactus

Camp David
The Marshals did not have the manpower to investigate all crime under federal jurisdiction, so the Secret Service began to investigate everything from murder to bank robbery to illegal gambling. After the assassination of President William McKinley in 1901, Congress informally requested that the Secret Service provide presidential protection. A year later, the Secret Service assumed full-time responsibility for presidential protection. In 1902, William Craig became the first Secret Service agent to die while serving, in a road accident while riding in the presidential carriage.