The U.S. National Security Agency accessed the internal communications of Venezuela's state-owned oil company, Petroleos de Venezuela and acquired sensitive data it planned to exploit in order to spy on the company’s top officials, according to a highly classified NSA document that reveals the operation was carried out in concert with the U.S. embassy in Caracas. The March 2011 document, labeled, “top secret,” and provided by former NSA contractor-turned-whistleblower Edward Snowden, is being reported on in an exclusive partnership between teleSUR and The Intercept. Drafted by an NSA signals development analyst, the document explains that PDVSA’s network, already compromised by U.S. intelligence...