When we were anchored at Isla Mujeres (Mexico) we were talking with a lady who was on the next boat. Her husband worked for some agency (I do not know which one) in Central America and his job was to alert the USCG when a boat carrying drugs left Mexico (or Belize, or Guatemala, or Honduras) headed for the U.S. Apparently some of the cruisers wanted to augment their income. The drug dealers would sell them the drugs, making a profit, and then notify the (unknown agency -- DEA I presume) who would give them a reward. The naive cruiser boat would come up the Yucatan Channel and the USCG boat would be waiting. In international waters, between Cuba and Isla Mujeres.
John