Ah.
It's been apparent from the start that we weren't getting the full story about what's really going on with Venezuela, but I had a few theories about it.
The CIA's involvement makes it likely that the correct one is that this war against drug traffickers is actually a turf war - that the US is not attacking Venezuelans in an attempt to stop the flow of narcotics (which is a fool's errand anyway) but in order to seize control.
Just as the CIA did in the past with heroin in southeast Asia and cocaine in central America...