From sniffing out cancer and drugs, dogs support us in so many ways with their incredible noses. So it's no surprise that the Bureau of Alcohol, Tobacco, Firearms, and Explosives found a valuable ally in their arson dogs. One of their newer canine ATF agents, Oscar, began his training with a federal prison inmate in Ohio through Puppies Behind Bars . Soon after graduation, ATF evaluated Oscar and decided the Black Labrador would be a good candidate for their program.