Scott joined the FBI in March 1941. Originally assigned to the Cryptography division, he asked to become a Special Agent. He was sent to spy on the German population in
Pittsburgh, and in February 1943 loaned to the US Embassy in
Cuba. After returning to Washington, D.C. he was recruited by the
Office of Strategic Services and assigned to London, where he became head of the Germany section of
X-2 (OSS' Counter Espionage Branch). In December 1958 he launched
Operation LITEMPO recruiting agents and collaborators, and gained then Mexican President
Adolfo López Mateos as well as future presidents
Gustavo Díaz Ordaz and
Luis Echeverría. ==Death and legacy==