What exactly is an " intelligence agency" ? what are it's jobs?
Intelligence agencies can provide the following services for their national governments.
provide analysis in areas relevant to national security;
give early warning of impending crises;
serve national and international crisis management by helping to discern the intentions of current or potential opponents;
inform national defense planning and military operations;
protect secrets, both of their own sources and activities, and those of other state agencies; and
may act covertly to influence the outcome of events in favor of national interests