How often does secret service code changes?
Sorry, that would be a 'secret'.
How often does a Secret Service fail to accomplish its task?
That would be a secret...
What code names does the secret service use for Malia and Sasha Obama?
How often do Secret Service agents draw their weapon?
As with most REAL (not TV) law enforcement officers, not very often.
Who was the first US President to be assigned a code name by the Secret Service. His code name was General?
Although the Secret Service is widely known for presidential security, they are under the direction of the Treasury department and have duties for maintaining security there.