Build that wall. A look at the Mexican drug cartel pipeline from southern California to Kentucky LOUISVILLE, Ky. (WDRB) -- Mexican cartels are controlling the streets of Louisville and other Kentucky cities with a pipeline of drugs running through southern California, according to DEA officials. Officials say the Sinaloa Cartel uses thousands of semi-trucks to transport drugs all over the country. From the freeways of Los Angeles, the drug pipeline runs north and east to Kentucky. Investigators