ATF & FBI in turf fights
Story here. That's not unpredictable: "merging" two agencies by having them both report to one Cabinet official doesn't change anything. Where they overlap, it has a downside -- merging all intelligence functions means those above only get one "position" rather than 2-3 that might give better insight.
FBI's had turf wars with CIA over foreign intelligence gathering, and I seem to recall with DEA over drug cases. I'm sure ATF sees FBI as wanting to grab all the best explosives cases and leave them with the uninteresting or less fruitful ones, and the FBI sees itself as the older brother with certain perks.