Few things infuriate Mexican officials more than U.S. accusations that government bigwigs are involved in drug trafficking. Last week the Mexicans were angrily denying a report in the San Diego Union charging that Defense Minister General Juan Arevalo Gardoqui was one of 45 law-enforcement and political figures linked to narcotics. President Miguel de la Madrid Hurtado took the allegation so seriously that an official was dispatched to Washington to inquire whether the charges reflected U.S. thinking.
The suggestion of high-level Mexican involvement apparently surfaced during the investigation of the February 1985 torture-murder of U.S. Drug Enforcement Agent Enrique Camarena Salazar. Last...