Communism is ripe from the Mexican border to the tip of South America.
It's not a HUGE problem right now because the drug lords keep them marginalized with buckets of cash for those who want to "work".
When/if the Narco State fails, look for Lenin to raise his ugly head, big time.
That said, the US will help destroy the Narco State. First through continued aid, political pressure and "advisers". And, probably eventually, legalization of their principal cash crop, pot. Yeah, there's a lot of money in coke and heroin, but pot is still the money-maker.
ping