Final answer:
The 1986 Electronic Communications Privacy Act requires authorization before surveillance of foreign intelligence targets, which involves national security issues. Correct option is c.
Step-by-step explanation:
The 1986 Electronic Communications Privacy Act requires the authorization of a U.S. attorney general and then the approval of a federal judge before surveillance may be made. Specifically, this legal procedure must be followed for surveillance of foreign intelligence targets. This is because exceptions to the Fourth Amendment's warrant requirement exist when surveillance is for national security purposes and is directed against foreign powers or agents of foreign powers reasonably believed to be located outside the United States. Domestic terrorism suspects, drug traffickers, and juvenile offenders do not fall within the specific context of foreign intelligence and thus would not be the correct answer in this case.