An Associated Press investigation casts doubt on whether the crackdown on the Sinaloa Drug Trafficking Organization caused any significant impact. It still ranks near the top of Mexico's drug gangs, most of those arrested were underlings who were swiftly replaced, and the leader remains free, along with his top commanders. The findings confirm what many critics of the prohibitionist drug war have said for years: The government is quick to boast about large arrests or drug seizures, but many of its most-publicized efforts result in little, if any, slowdown in the drug trade.