The CIA is deploying unmanned drones over Mexico to search for fentanyl labs run by drug cartels after the Trump administration declared cartels are terrorist organizations.

Mexico President Claudia Sheinbaum said Wednesday that surveillance drone flights by the U.S. government over Mexico are occurring in collaboration with and at the request of her government. They come as U.

Other experts pointed out that past efforts to deploy military might against drug traffickers have failed to slow the flow of drugs into the United States. When the Mexican government declared war on cartels in 2006 and sent soldiers into the streets to fight them, the clearest result was a massive increase in homicides.