Why did the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) let criminals buy firearms, smuggle them across the Mexican border and deliver them into the hands of vicious drug cartels? The ATF claims it launched its now-disgraced Operation Fast and Furious in 2009 to catch the "big fish." Fast and Furious was designed to stem the "Iron River" flowing from American gun stores into the cartels' arsenals. The bureau says it allowed gun smuggling so it could track the firearms and arrest the cartel members downstream. Not true.