DEA HF comms: still active?

[Dag]

I used to hear lots of SSB HF communication from the Drug Enforcement Agency in the late 1980s and early 1990s, usually ground-to-air drug interdiction traffic.

FORMAT was one callsign I heard often which I think was a ground-based operation center as it was always a consistent copy and would be frequently in contact with what sounded like aircraft flying in the Caribbean or around central America tracking boats loaded with cocaine (my guess).
 
I've not come across any in a long time and the reports of intercepts seem absent.

Where'd they go?   What frequencies are likely to be active, if any?

Dag