Released in August 2003 by the National Security Archive as part of its Electronic Briefing Book series, this compilation offers primary documents and audio selections dealing with the relationship between President Richard Nixon and the former president of Mexico, Luis Echeverria Alvarez. While normally the public would not be privy to the contents of their discussions (held in June 1972), hidden microphones that had been planted by Secret Service technicians in 1971 were recording the conversations between these two world leaders in their entirety. Interestingly enough, the two presidents only occasionally discussed the most-frequently debated issues between the two nations (such as drugs or trade), but rather mused back and forth about geopolitics for much of the time. All in all, the site includes 32 transcripts, and around a dozen audio excerpts from the conversations.