There doesn't need to be an enemy, but there is never not an enemy. I mean this on the petty, day to day, citizen level, not the global political scale. Organized crime exists and must be investigated and prosecuted to avoid endangering the everyday life of the citizenry. When this crime crosses state borders, a federal investigatory body can be an asset.
I think the FBI has succumbed to scope creep and overstepped what I perceive as their remit; however, that doesn't mean they're an unnecessary body.
I think the FBI has succumbed to scope creep and overstepped what I perceive as their remit; however, that doesn't mean they're an unnecessary body.