I have frequently noticed at least a couple of Customs officials at the jetbridge when coming off of flights from "suspect" destinations (i.e. the Dominican Republic, Venezuela, Columbia, etc), presumably to give these pax extra scrutiny prior to their entering the general mix of presumably lower-risk holiday makers returning from Caribbean vacations and inbound pax from Europe.

What put this situation in a different category, however, was the sheer number of officers (12 in total) and what appeared to be an intentionally intimidating demeanor. The logistics of the set-up were such that you didn't see the two other customs guys eyeing you until you breathed a sigh of relief after making it through the line-up.