U.S. Mexican wants cartels declared terrorist organizations . Ambassador says if so , Texas drug users should be considered terror `` financiers '' Mexican officials are concerned about violence spilling across border . The concern about Mexican drug cartels has also been expressed by Homeland Security Secretary Janet Napolitano . American officials say cartels are not insurgent or political .
U.S. Mexican wants cartels declared terrorist organizations . Ambassador says if so , Texas drug users should be considered terror `` financiers '' Mexican officials are concerned about violence spilling across border . American officials say cartels are not insurgent or political .