MURRIETA, California — A routine vehicle stop by U.S. Border Patrol agents led to a significant drug bust after a K9 unit detected narcotics, resulting in the discovery of 17.9 pounds of cocaine and 3.7 pounds of methamphetamine. The driver now faces federal charges, including possession of controlled substances, conspiracy to distribute, and unlawful importation of a controlled substance, according to the U.S. Border Patrol.In Marfa, Texas, a K9 alert at the Highway 67 checkpoint uncovered over 320 pounds of marijuana, leading to the arrest of the driver on charges of possession of a controlled substance. In a span of just 24 hours, U.S. Border Patrol and its partners seized over 1,000 pounds of drugs valued at more than $1.2 million, stated the department…