Cuban slave health workers.

The slave doctors have become the Castro’s' best "industry"
August 17 - In July, Cuba's national magazine, Bohemia, reported on its online pages that the Castro regime earned about $350 million last year from the sale of medicines abroad, second only to nickel and surpassing more traditional exports such as tobacco, rum and sugar.
More than 31,000 Cuban slave health workers -- most of them doctors -- who toil in 71 countries, brought in $2.3 billion last year, more than any other industry, including tourism.
Most of them are paid $150 to $375 a month, a small percentage of the cash or trade benefits the Castro brothers pocket in exchange for their work.
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Photo: Cuban doctors assist a patient in a free health care clinic named "Mission inside the Barrio" on Nov. 28, 2006, in Caracas, Venezuela. MARIO TAMA / GETTY IMAGES