hot zone, areas where we couldn't drive. it's a term used often in afghanistan or in iraq. i mean, we are at the point where we are not using security all the time or armord vehicles, but that could be changing. you do get a sense when you go out here in the evening, it's really a ghosttown. the question is whether these drug cartels are terrorists or not. technically, many professors would tell you, they are not terrorists, they are not trying to overthrow the government, they are just trying to make money. but they are using car bombs and trying to scare everybody-- the police, military and journalists and people. it is working. people here are terrified. >> steve, thank you. tonight, we are showing you the new technology used to protect our border, the border patrol is flying unmanned predator aircraft. griff jenkins has an inside look at the high-tech planes. >> reporter: this is the director of air operations for