'El Chapo' aide who helped FBI tap his phones takes stand

Accused Mexican drug cartel boss Joaquin “El Chapo” Guzman was so preoccupied with spying on his associates he had software installed on their phones to monitor their texts and conversations, a key prosecution witness testified on Wednesday, an opening the FBI would later exploit.

from Reuters: U.S. https://reut.rs/2TySSL8