A new proposed rule by the Bureau of Alcohol, Tobacco, Firearms and Explosives would increase what is required to obtain a federal firearms license (FFL) for gun sellers across the country -- an attempt to end what gun control advocates term "the gun show loophole." Justice Department officials told reporters that prior to the Bipartisan Safer Communities Act, which was signed into law last June, those "engaged in the business" of a firearms dealer were defined broadly. The definition that ATF is proposing is more specific in an effort to better regulate the market in accordance with the new federal...