Alcohol, tobacco, firearms, and explosives, these subjects make up the life's work of officers in the Bureau of Alcohol, Tobacco, Firearms and Explosives. The ATF, unlike the other federal law enforcement agencies, though, the ATF also oversees and regulates legitimate organizations and companies to make sure that criminals do not steal the kind of chemicals that can be used to make bombs. The ATF encompasses a wide variety of duties under the auspices...