Nearly two years after Ismael "El Mayo" Zambada was arrested in the United States in what has been described as an alleged betrayal by Joaquín Guzmán López, the son of Joaquín "El Chapo" Guzmán, the circumstances surrounding the incident continue to draw scrutiny from both Mexican and U.S. officials.
Each country has presented a different version of events. While U.S. officials maintain that no government agency was involved in the arrests of Zambada and Guzmán López, Mexican officials argue the United States knows more than it has disclosed about how a private plane carrying two of Mexico's most powerful drug lords was able to enter U.S. airspace without Mexican authorities being informed.
