Take a look at The Revolution will not be televised. the 2002 doc about the attempted ousting of Venesuelen President Hugo Chavez.
Apparently Chavez was warned of the Coup by a Greg Palast interview a few days before. Heres an interview with Palast about "Armed Madhouse: Who's Afraid of Osama Wolf? China Floats, Bush Sinks, The Scheme to Steal '08, No Child's Behind Left, and Other Dispatches from the Front Lines of the Class War" in which he mentions the Coup.