I cannot create a summary of this article because the available search results do not include the full text of the Lancet correspondence. The search results contain only the title and partial description of the article, but not its content. However, the search results contain information about the American intervention in Venezuela: the Trump administration justifies the operation by saying that Venezuela is a center of drug trafficking and that President Maduro is involved in it. However, some analysts dispute the claim that the Cartel de los Soles is a cohesive criminal organization led by Maduro, saying the characterization lacks sufficient foundation. In order to create an accurate correspondence summary as per your requirements, I would need access to the full text of the article.