> Another question: why do they have anything to do with investigating counterfeit currency? That particular responsibility should be reassigned to another agen

> Another question: why do they have anything to do with investigating counterfeit currency? That particular responsibility should be reassigned to another agency at Treasury or FBI so Secret Service can concentrate on their core mission of protecting the president. The Secret Service is under the Treasury. Its original core task was counterfeit currency. Only after McKinley was assassinated (20 years after Garfield was assassinated (15 years after Lincoln was assassinated)) I think was it expanded to also include protecting the president.