"Congress has debated the efficacy and constitutionality of federal regulation of firearms and ammunition, with strong advocates arguing for and against greater gun control. The tragic shootings in Tucson, AZ, on January 8, 2011, in which six people were killed and 13 wounded, including Representative Gabrielle Giffords, could prompt the 112th Congress to examine issues related to the shooter's mental illness and drug use (see S. 436) and his use of large capacity ammunition feeding devices (LCAFDs) (see H.R. 308 and S. 32), as well as a proposal to ban firearms within the proximity of certain high-level federal officials (see H.R. 367 and H.R. 496). Other emerging issues include the Bureau of Alcohol, Tobacco, Firearms and Explosives' (ATF) proposal to require multiple rifle sales reports from Southwest border state gun dealers and its conduct of Operation Fast and Furious. In addition, gun-related amendments to bills reauthorizing USA PATRIOT Act provisions were considered (H.R. 1800, S. 1038, and S. 990), but were not included in the enacted legislation (P.L. 112-14). To set these and other emerging issues in context, this report provides basic firearms-related statistics, an overview of federal firearms law, and a summary of legislative action in the 111th Congress. During the 111th Congress, the gun control debate was colored by two key Supreme Court findings. In 'District of Columbia v. Heller', the Court found that the District of Columbia (DC) handgun ban, among other regulations, violated an individual's right under the Second Amendment to lawfully possess a firearm in his home for self-defense. In 'McDonald v. City of Chicago', the Court found that the Second Amendment also applied to the states. Congress considered amendments to DC voting rights bills that would have further overturned DC gun laws (S. 160 and H.R. 157), effectively scuttling the House bill."
CRS Report for Congress, RL32842