SAN ANTONIO — Andy Morabe, director of business development for IXI Technology, says he can take down any drone with the drone gun he’s developed, including any that might be flown over the southern U.S. border by drug cartels.

His Drone Killer gun is the first and only hand-held device that can take down a drone without blowing it up, and it quickly became a favorite among law enforcement officials at the Border Security Expo here this week.