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El Chapo trial: Cartel tech guy flips on drug kingpin

A former FBI agent took the stand to deliver a huge blow to Joaquin "El Chapo" Guzman. He testified to wiretapping the drug lord for years, using the Sinaloa cartel's very own tech guy to access their communications. CBSN legal analyst Rikki Klieman has more on the latest developments.
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