How is the U.S. using drone cooperation with Mexico to combat fentanyl production?

The U.S. is sharing intelligence with Mexico and utilizing drones to identify and shut down fentanyl labs across the border. This represents constructive cooperation between the two countries in their mutual fight against drug production. However, Julian Castro expresses concern about the shift toward more military-style operations under Pentagon oversight, warning that if these drones were used offensively and resulted in civilian casualties, it could severely damage U.S.-Mexico relations. This risk would be particularly acute under a Trump administration, which might pursue more aggressive approaches.