The Arizona Department of Public Safety apparently did a great job sniffing out a fake septic service truck last week, then finding 743 pounds of marijuana in the vacuum tank. According to news accounts from the Arizona Republic newspaper, CNN, Fox News and others, state police noticed “suspicious markings’’ on the truck labeled United Arizona LLC, and made a traffic stop. The bust happened along U.S. 19, about 35 miles south of Tucson, a known route for drug and human trafficking.Driver Leonard Salcido, 24, of Tucson, Ariz., gave officers permission to search the truck. The pot, with an estimated street
