In the 623rd paragraph, the report described a cable from the CIA's Directorate of Operations dated October 22, 1982, describing a prospective meeting between Contra leaders in Costa Rica for "an exchange in United States of narcotics for arms, which then are shipped to Nicaragua." The two main Contra groups, US arms dealers, and a lieutenant of a drug ring which imported drugs from Latin America to the US west coast were set to attend the Costa Rica meeting. The lieutenant trafficker was also a Contra, and the CIA knew that there was an arms-for-drugs shuttle and did nothing to stop it.