Sinaloa , Gulf cartels fight for control of drug trade across U.S. border . Guzman , who leads the Sinaloa cartel , is a key player in the bloody turf battles being fought along the border . The turf war has spurred record death tolls with murders , beheadings . U.S. is doubling number of agents at border , over $ 700 million . However , analysts compare situation to ' the battle against Colombian cartels .
Sinaloa , Gulf cartels fight for control of drug trade across U.S. border . The turf war has spurred record death tolls with murders , beheadings . U.S. is doubling number of agents at border , over $ 700 million . However , analysts compare situation to ' the battle against Colombian cartels .