CHICAGO, Sept. 12 (UPI) -- Mexican drug cartels, finding it harder to smuggle in marijuana, are growing more of their crops in the United States, officials say.
SEQUOIA NATIONAL FOREST, Calif., Aug. 8 (UPI) -- Mexican drug cartels are growing huge marijuana crops in U.S. National Forests rather than risk smuggling pot into the United States, officials say.
MEXICO CITY, June 11 (UPI) -- Mexican drug cartels have been leaving messages with severed heads and bodies to emphasize the penalties for opponents, police say.
CAMARGO, Mexico, March 30 (UPI) -- Mexican drug cartels have conducted military-style training camps in northern Mexico, according to U.S. and Mexican authorities.
WASHINGTON , Aug. 8 (UPI) -- A massive and costly offensive on Mexican drug cartels is being drafted by the Bush administration with apparent cooperation from Mexico.
MEXICO CITY, March 29 (UPI) -- Hand grenades are being used in fighting between Mexican authorities and drug cartels on the U.S.-Mexican border, The Dallas Morning News reported Wednesday.
LAREDO, Texas, Feb. 4 (UPI) -- U.S. authorities have confiscated a large weapons cache near the Mexican border allegedly belonging to Mexican drug cartels, El Universal reported Saturday.
HOUSTON, Aug. 22 (UPI) -- U.S. federal agents, cracking down on money-laundering, reportedly have found two Mexican cattle firms are fronts for drug-trafficking cartels.
MEXICO CITY, Dec. 13 (UPI) -- Two Mexican drug cartels have formed an alliance to extend shipments of drugs from Peru, Reforma reported Monday.
SAN JOSE, Calif., Dec. 18 (UPI) -- Law enforcement agencies harvested nearly 314,000 plants worth $1.25 billion during its annual crackdown on California's lucrative marijuana crop, the state's a