Drug Tunnel Links U.S. Mexico Warehouses
COSTELLO: A sophisticated super tunnel is discovered snaking between San Diego and Tijuana, Mexico. It has lighting, ventilation, even an electric rail system. Investigators also found drugs valid at nearly $12 million. Now authorities have a new warning for the drug cartels. Miguel Marquez is outside of the tunnels' entrances -- Miguel.</s>MIGUEL MARQUEZ, CNN CORRESPONDENT: Carol, this is the door that agents busted down here. It's always a nondescript warehouse. It's 600 yards south of where we are standing is Mexico and there's another warehouse on that side where the tunnel began. Inside they found the drugs. There have been three arrests so far, but they're described as small fish in all of this. As diggers in the tunnel and transport folks, law enforcement officials say there will be more.</s>UNIDENTIFIED MALE: And I would offer this to the drug cartels, we are by no means finished here. And don't say we didn't warn you. You go underground, you're going down.</s>MARQUEZ: Law enforcement underscoring that the investigation on this has just begun and they're talking tough because they want to send the signal to drug dealers that whether they try to go under the border or over it or in ultra light planes like they have been doing or in speed boats, they are getting bigger and more powerful and going farther up the coast in California, that they will have surveillance and they will bust them. It is concerning to them, though, that cocaine was found in this tunnel. That indicates to them that as they say right now, that the drug cartels, that they are more desperate than they have been in the past. And the problem here in Southern California is that the amount of hard drugs, cocaine and heroin and others have been coming in, in greater, greater amounts, and the price for drugs across the country and the world have been going down. So they really want to get on top of this and make the most of these sorts of bust -- Carol.</s>COSTELLO: Miguel Marquez reporting for us this morning, thank you. Still to come in the NEWSROOM, new rules for using electronic gadgets onboard an airplane, one airline, Delta, is making the change today. What do passengers think? That's next.