ISI which is the Pakistani secret service can receive the title of best secret service in the world because of its operations and training and secrecy over time. Not a single agent has been caught, even on camera or defected from the service since it's creation in 1948.
But again this can be debatable.
Mossad and Shin Bet of Israel, followed by MI6 of the UK and the FSB of the Russian Federation.
Tim Norell
Israel
They did the best they could
That's a secret.
The Secret Service investigates counterfeiting.
Secret service
bush has a secret service
The duration of On Secret Service is 1.48 hours.
The secret service.
Secret Service Agents
The duration of In the Secret Service is 600.0 seconds.
Yes, women can join the Secret Service. The Secret Service is open to both men and women who meet the qualifications for the various positions within the agency. Gender does not restrict someone from joining the Secret Service.
Confederate Secret Service was created in 1861.